Home / 82,739,809.20-124,109,713.80-73,811,600.40

Finding the Fourth Proportional to 82,739,809.20, 124,109,713.80 and 73,811,600.40

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Solution

The fourth proportional to 82,739,809.20, 124,109,713.80 and 73,811,600.40 is: 110,717,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,739,809.20 : 124,109,713.80 = 73,811,600.40 : x
  2. Step 2: Convert to fraction form
    82,739,809.20/124,109,713.80 = 73,811,600.40/x
  3. Step 3: Cross multiply
    82,739,809.20x = 124,109,713.80 × 73,811,600.40
  4. Step 4: Simplify right side
    82,739,809.20x = 9,160,736,600,763,966
  5. Step 5: Solve for x
    x = 9,160,736,600,763,966/82,739,809.20
  6. Step 6: Final answer
    x = 110,717,400.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.