Home / 142,436,541.52-196,558,204.62-78,859,713.39

Finding the Fourth Proportional to 142,436,541.52, 196,558,204.62 and 78,859,713.39

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Solution

The fourth proportional to 142,436,541.52, 196,558,204.62 and 78,859,713.39 is: 108,824,066.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,436,541.52 : 196,558,204.62 = 78,859,713.39 : x
  2. Step 2: Convert to fraction form
    142,436,541.52/196,558,204.62 = 78,859,713.39/x
  3. Step 3: Cross multiply
    142,436,541.52x = 196,558,204.62 × 78,859,713.39
  4. Step 4: Simplify right side
    142,436,541.52x = 15,500,523,680,786,174
  5. Step 5: Solve for x
    x = 15,500,523,680,786,174/142,436,541.52
  6. Step 6: Final answer
    x = 108,824,066.60

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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.