Home / 518,996,487.12-716,217,049.56-280,841,672.76

Finding the Fourth Proportional to 518,996,487.12, 716,217,049.56 and 280,841,672.76

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Solution

The fourth proportional to 518,996,487.12, 716,217,049.56 and 280,841,672.76 is: 387,562,535.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,996,487.12 : 716,217,049.56 = 280,841,672.76 : x
  2. Step 2: Convert to fraction form
    518,996,487.12/716,217,049.56 = 280,841,672.76/x
  3. Step 3: Cross multiply
    518,996,487.12x = 716,217,049.56 × 280,841,672.76
  4. Step 4: Simplify right side
    518,996,487.12x = 201,143,594,257,662,208
  5. Step 5: Solve for x
    x = 201,143,594,257,662,208/518,996,487.12
  6. Step 6: Final answer
    x = 387,562,535.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.