Home / 77,278,646.76-106,647,090.08-42,472,570.92

Finding the Fourth Proportional to 77,278,646.76, 106,647,090.08 and 42,472,570.92

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Solution

The fourth proportional to 77,278,646.76, 106,647,090.08 and 42,472,570.92 is: 58,613,553.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,278,646.76 : 106,647,090.08 = 42,472,570.92 : x
  2. Step 2: Convert to fraction form
    77,278,646.76/106,647,090.08 = 42,472,570.92/x
  3. Step 3: Cross multiply
    77,278,646.76x = 106,647,090.08 × 42,472,570.92
  4. Step 4: Simplify right side
    77,278,646.76x = 4,529,576,096,834,429
  5. Step 5: Solve for x
    x = 4,529,576,096,834,429/77,278,646.76
  6. Step 6: Final answer
    x = 58,613,553.51

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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.