Home / 142,146,901.42-196,144,691.40-83,388,127.25

Finding the Fourth Proportional to 142,146,901.42, 196,144,691.40 and 83,388,127.25

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Solution

The fourth proportional to 142,146,901.42, 196,144,691.40 and 83,388,127.25 is: 115,065,037.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,146,901.42 : 196,144,691.40 = 83,388,127.25 : x
  2. Step 2: Convert to fraction form
    142,146,901.42/196,144,691.40 = 83,388,127.25/x
  3. Step 3: Cross multiply
    142,146,901.42x = 196,144,691.40 × 83,388,127.25
  4. Step 4: Simplify right side
    142,146,901.42x = 16,356,138,486,365,542
  5. Step 5: Solve for x
    x = 16,356,138,486,365,542/142,146,901.42
  6. Step 6: Final answer
    x = 115,065,037.11

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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.