Home / 497,577,074-686,904,952.20-309,466,004.72

Finding the Fourth Proportional to 497,577,074, 686,904,952.20 and 309,466,004.72

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Solution

The fourth proportional to 497,577,074, 686,904,952.20 and 309,466,004.72 is: 427,217,696.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,577,074 : 686,904,952.20 = 309,466,004.72 : x
  2. Step 2: Convert to fraction form
    497,577,074/686,904,952.20 = 309,466,004.72/x
  3. Step 3: Cross multiply
    497,577,074x = 686,904,952.20 × 309,466,004.72
  4. Step 4: Simplify right side
    497,577,074x = 212,573,731,179,716,608
  5. Step 5: Solve for x
    x = 212,573,731,179,716,608/497,577,074
  6. Step 6: Final answer
    x = 427,217,696.09

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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.