Home / 124,420,020.15-186,630,030.23-78,734,464.95

Finding the Fourth Proportional to 124,420,020.15, 186,630,030.23 and 78,734,464.95

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Solution

The fourth proportional to 124,420,020.15, 186,630,030.23 and 78,734,464.95 is: 118,101,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,420,020.15 : 186,630,030.23 = 78,734,464.95 : x
  2. Step 2: Convert to fraction form
    124,420,020.15/186,630,030.23 = 78,734,464.95/x
  3. Step 3: Cross multiply
    124,420,020.15x = 186,630,030.23 × 78,734,464.95
  4. Step 4: Simplify right side
    124,420,020.15x = 14,694,215,573,367,704
  5. Step 5: Solve for x
    x = 14,694,215,573,367,704/124,420,020.15
  6. Step 6: Final answer
    x = 118,101,697.43

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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.