Home / 128,735,560.20-177,653,839.50-69,998,246.86

Finding the Fourth Proportional to 128,735,560.20, 177,653,839.50 and 69,998,246.86

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Solution

The fourth proportional to 128,735,560.20, 177,653,839.50 and 69,998,246.86 is: 96,596,909.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,735,560.20 : 177,653,839.50 = 69,998,246.86 : x
  2. Step 2: Convert to fraction form
    128,735,560.20/177,653,839.50 = 69,998,246.86/x
  3. Step 3: Cross multiply
    128,735,560.20x = 177,653,839.50 × 69,998,246.86
  4. Step 4: Simplify right side
    128,735,560.20x = 12,435,457,312,947,818
  5. Step 5: Solve for x
    x = 12,435,457,312,947,818/128,735,560.20
  6. Step 6: Final answer
    x = 96,596,909.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.