Home / 124,734,002.20-186,817,568.10-78,817,499.80

Finding the Fourth Proportional to 124,734,002.20, 186,817,568.10 and 78,817,499.80

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Solution

The fourth proportional to 124,734,002.20, 186,817,568.10 and 78,817,499.80 is: 118,047,151.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,734,002.20 : 186,817,568.10 = 78,817,499.80 : x
  2. Step 2: Convert to fraction form
    124,734,002.20/186,817,568.10 = 78,817,499.80/x
  3. Step 3: Cross multiply
    124,734,002.20x = 186,817,568.10 × 78,817,499.80
  4. Step 4: Simplify right side
    124,734,002.20x = 14,724,493,636,358,236
  5. Step 5: Solve for x
    x = 14,724,493,636,358,236/124,734,002.20
  6. Step 6: Final answer
    x = 118,047,151.35

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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.