Home / 1,316,344,440.30-1,974,516,660.45-442,655,436.30

Finding the Fourth Proportional to 1,316,344,440.30, 1,974,516,660.45 and 442,655,436.30

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Solution

The fourth proportional to 1,316,344,440.30, 1,974,516,660.45 and 442,655,436.30 is: 663,983,154.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,344,440.30 : 1,974,516,660.45 = 442,655,436.30 : x
  2. Step 2: Convert to fraction form
    1,316,344,440.30/1,974,516,660.45 = 442,655,436.30/x
  3. Step 3: Cross multiply
    1,316,344,440.30x = 1,974,516,660.45 × 442,655,436.30
  4. Step 4: Simplify right side
    1,316,344,440.30x = 874,030,533,813,113,728
  5. Step 5: Solve for x
    x = 874,030,533,813,113,728/1,316,344,440.30
  6. Step 6: Final answer
    x = 663,983,154.45

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Half scale
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Double scale
Find fourth proportional to 1,316,344,441.30, 1,974,516,661.95 and 442,655,437.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.