Home / 86,290,356.20-119,079,905.47-47,132,122.58

Finding the Fourth Proportional to 86,290,356.20, 119,079,905.47 and 47,132,122.58

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Solution

The fourth proportional to 86,290,356.20, 119,079,905.47 and 47,132,122.58 is: 65,041,899.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,290,356.20 : 119,079,905.47 = 47,132,122.58 : x
  2. Step 2: Convert to fraction form
    86,290,356.20/119,079,905.47 = 47,132,122.58/x
  3. Step 3: Cross multiply
    86,290,356.20x = 119,079,905.47 × 47,132,122.58
  4. Step 4: Simplify right side
    86,290,356.20x = 5,612,488,700,713,623
  5. Step 5: Solve for x
    x = 5,612,488,700,713,623/86,290,356.20
  6. Step 6: Final answer
    x = 65,041,899.79

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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.