Home / 142,558,159.86-196,730,260.62-77,368,063.86

Finding the Fourth Proportional to 142,558,159.86, 196,730,260.62 and 77,368,063.86

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Solution

The fourth proportional to 142,558,159.86, 196,730,260.62 and 77,368,063.86 is: 106,767,928.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,558,159.86 : 196,730,260.62 = 77,368,063.86 : x
  2. Step 2: Convert to fraction form
    142,558,159.86/196,730,260.62 = 77,368,063.86/x
  3. Step 3: Cross multiply
    142,558,159.86x = 196,730,260.62 × 77,368,063.86
  4. Step 4: Simplify right side
    142,558,159.86x = 15,220,639,366,842,604
  5. Step 5: Solve for x
    x = 15,220,639,366,842,604/142,558,159.86
  6. Step 6: Final answer
    x = 106,767,928.13

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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.