Home / 75,156,639.80-112,734,959.70-66,068,998.70

Finding the Fourth Proportional to 75,156,639.80, 112,734,959.70 and 66,068,998.70

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Solution

The fourth proportional to 75,156,639.80, 112,734,959.70 and 66,068,998.70 is: 99,103,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,156,639.80 : 112,734,959.70 = 66,068,998.70 : x
  2. Step 2: Convert to fraction form
    75,156,639.80/112,734,959.70 = 66,068,998.70/x
  3. Step 3: Cross multiply
    75,156,639.80x = 112,734,959.70 × 66,068,998.70
  4. Step 4: Simplify right side
    75,156,639.80x = 7,448,285,905,863,853
  5. Step 5: Solve for x
    x = 7,448,285,905,863,853/75,156,639.80
  6. Step 6: Final answer
    x = 99,103,498.05

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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.