Home / 528,409,862.10-792,614,793.15-392,360,966.10

Finding the Fourth Proportional to 528,409,862.10, 792,614,793.15 and 392,360,966.10

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Solution

The fourth proportional to 528,409,862.10, 792,614,793.15 and 392,360,966.10 is: 588,541,449.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,409,862.10 : 792,614,793.15 = 392,360,966.10 : x
  2. Step 2: Convert to fraction form
    528,409,862.10/792,614,793.15 = 392,360,966.10/x
  3. Step 3: Cross multiply
    528,409,862.10x = 792,614,793.15 × 392,360,966.10
  4. Step 4: Simplify right side
    528,409,862.10x = 310,991,105,985,485,696
  5. Step 5: Solve for x
    x = 310,991,105,985,485,696/528,409,862.10
  6. Step 6: Final answer
    x = 588,541,449.15

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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.