Home / 75,156,618.30-112,734,927.45-66,068,977.20

Finding the Fourth Proportional to 75,156,618.30, 112,734,927.45 and 66,068,977.20

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Solution

The fourth proportional to 75,156,618.30, 112,734,927.45 and 66,068,977.20 is: 99,103,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,156,618.30 : 112,734,927.45 = 66,068,977.20 : x
  2. Step 2: Convert to fraction form
    75,156,618.30/112,734,927.45 = 66,068,977.20/x
  3. Step 3: Cross multiply
    75,156,618.30x = 112,734,927.45 × 66,068,977.20
  4. Step 4: Simplify right side
    75,156,618.30x = 7,448,281,351,337,705
  5. Step 5: Solve for x
    x = 7,448,281,351,337,705/75,156,618.30
  6. Step 6: Final answer
    x = 99,103,465.80

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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.