Home / 138,452,767.47-191,123,649.62-86,267,586.32

Finding the Fourth Proportional to 138,452,767.47, 191,123,649.62 and 86,267,586.32

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Solution

The fourth proportional to 138,452,767.47, 191,123,649.62 and 86,267,586.32 is: 119,085,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,452,767.47 : 191,123,649.62 = 86,267,586.32 : x
  2. Step 2: Convert to fraction form
    138,452,767.47/191,123,649.62 = 86,267,586.32/x
  3. Step 3: Cross multiply
    138,452,767.47x = 191,123,649.62 × 86,267,586.32
  4. Step 4: Simplify right side
    138,452,767.47x = 16,487,775,941,602,454
  5. Step 5: Solve for x
    x = 16,487,775,941,602,454/138,452,767.47
  6. Step 6: Final answer
    x = 119,085,925.43

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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.