Home / 1,316,327,429.40-1,974,783,436.65-442,904,145.90

Finding the Fourth Proportional to 1,316,327,429.40, 1,974,783,436.65 and 442,904,145.90

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Solution

The fourth proportional to 1,316,327,429.40, 1,974,783,436.65 and 442,904,145.90 is: 664,454,566.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,327,429.40 : 1,974,783,436.65 = 442,904,145.90 : x
  2. Step 2: Convert to fraction form
    1,316,327,429.40/1,974,783,436.65 = 442,904,145.90/x
  3. Step 3: Cross multiply
    1,316,327,429.40x = 1,974,783,436.65 × 442,904,145.90
  4. Step 4: Simplify right side
    1,316,327,429.40x = 874,639,771,346,935,040
  5. Step 5: Solve for x
    x = 874,639,771,346,935,040/1,316,327,429.40
  6. Step 6: Final answer
    x = 664,454,566.40

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Double scale
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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.