Home / 136,964,996.16-189,011,678.40-75,085,771.92

Finding the Fourth Proportional to 136,964,996.16, 189,011,678.40 and 75,085,771.92

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Solution

The fourth proportional to 136,964,996.16, 189,011,678.40 and 75,085,771.92 is: 103,618,356.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,964,996.16 : 189,011,678.40 = 75,085,771.92 : x
  2. Step 2: Convert to fraction form
    136,964,996.16/189,011,678.40 = 75,085,771.92/x
  3. Step 3: Cross multiply
    136,964,996.16x = 189,011,678.40 × 75,085,771.92
  4. Step 4: Simplify right side
    136,964,996.16x = 14,192,087,774,558,792
  5. Step 5: Solve for x
    x = 14,192,087,774,558,792/136,964,996.16
  6. Step 6: Final answer
    x = 103,618,356.31

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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.