Home / 656,854,829.20-906,462,066.54-355,440,143.44

Finding the Fourth Proportional to 656,854,829.20, 906,462,066.54 and 355,440,143.44

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Solution

The fourth proportional to 656,854,829.20, 906,462,066.54 and 355,440,143.44 is: 490,508,697.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,854,829.20 : 906,462,066.54 = 355,440,143.44 : x
  2. Step 2: Convert to fraction form
    656,854,829.20/906,462,066.54 = 355,440,143.44/x
  3. Step 3: Cross multiply
    656,854,829.20x = 906,462,066.54 × 355,440,143.44
  4. Step 4: Simplify right side
    656,854,829.20x = 322,193,006,953,896,384
  5. Step 5: Solve for x
    x = 322,193,006,953,896,384/656,854,829.20
  6. Step 6: Final answer
    x = 490,508,697.86

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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.