Home / 651,837,387.10-977,756,080.65-392,919,331.90

Finding the Fourth Proportional to 651,837,387.10, 977,756,080.65 and 392,919,331.90

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Solution

The fourth proportional to 651,837,387.10, 977,756,080.65 and 392,919,331.90 is: 589,378,997.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,837,387.10 : 977,756,080.65 = 392,919,331.90 : x
  2. Step 2: Convert to fraction form
    651,837,387.10/977,756,080.65 = 392,919,331.90/x
  3. Step 3: Cross multiply
    651,837,387.10x = 977,756,080.65 × 392,919,331.90
  4. Step 4: Simplify right side
    651,837,387.10x = 384,179,265,970,160,512
  5. Step 5: Solve for x
    x = 384,179,265,970,160,512/651,837,387.10
  6. Step 6: Final answer
    x = 589,378,997.85

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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.