Home / 1,038,096,972.80-1,557,145,459.20-310,991,206.40

Finding the Fourth Proportional to 1,038,096,972.80, 1,557,145,459.20 and 310,991,206.40

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Solution

The fourth proportional to 1,038,096,972.80, 1,557,145,459.20 and 310,991,206.40 is: 466,486,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,096,972.80 : 1,557,145,459.20 = 310,991,206.40 : x
  2. Step 2: Convert to fraction form
    1,038,096,972.80/1,557,145,459.20 = 310,991,206.40/x
  3. Step 3: Cross multiply
    1,038,096,972.80x = 1,557,145,459.20 × 310,991,206.40
  4. Step 4: Simplify right side
    1,038,096,972.80x = 484,258,544,896,889,984
  5. Step 5: Solve for x
    x = 484,258,544,896,889,984/1,038,096,972.80
  6. Step 6: Final answer
    x = 466,486,809.60

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Double scale
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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.