Home / 131,239,140.47-181,115,193.54-75,484,471.43

Finding the Fourth Proportional to 131,239,140.47, 181,115,193.54 and 75,484,471.43

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Solution

The fourth proportional to 131,239,140.47, 181,115,193.54 and 75,484,471.43 is: 104,171,549.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,239,140.47 : 181,115,193.54 = 75,484,471.43 : x
  2. Step 2: Convert to fraction form
    131,239,140.47/181,115,193.54 = 75,484,471.43/x
  3. Step 3: Cross multiply
    131,239,140.47x = 181,115,193.54 × 75,484,471.43
  4. Step 4: Simplify right side
    131,239,140.47x = 13,671,384,651,403,474
  5. Step 5: Solve for x
    x = 13,671,384,651,403,474/131,239,140.47
  6. Step 6: Final answer
    x = 104,171,549.76

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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.