Home / 124,527,780.80-186,791,671.20-79,290,123.20

Finding the Fourth Proportional to 124,527,780.80, 186,791,671.20 and 79,290,123.20

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Solution

The fourth proportional to 124,527,780.80, 186,791,671.20 and 79,290,123.20 is: 118,935,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,527,780.80 : 186,791,671.20 = 79,290,123.20 : x
  2. Step 2: Convert to fraction form
    124,527,780.80/186,791,671.20 = 79,290,123.20/x
  3. Step 3: Cross multiply
    124,527,780.80x = 186,791,671.20 × 79,290,123.20
  4. Step 4: Simplify right side
    124,527,780.80x = 14,810,734,622,181,892
  5. Step 5: Solve for x
    x = 14,810,734,622,181,892/124,527,780.80
  6. Step 6: Final answer
    x = 118,935,184.80

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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.