Home / 128,063,687.06-176,727,683.77-69,326,336.61

Finding the Fourth Proportional to 128,063,687.06, 176,727,683.77 and 69,326,336.61

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Solution

The fourth proportional to 128,063,687.06, 176,727,683.77 and 69,326,336.61 is: 95,670,233.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,063,687.06 : 176,727,683.77 = 69,326,336.61 : x
  2. Step 2: Convert to fraction form
    128,063,687.06/176,727,683.77 = 69,326,336.61/x
  3. Step 3: Cross multiply
    128,063,687.06x = 176,727,683.77 × 69,326,336.61
  4. Step 4: Simplify right side
    128,063,687.06x = 12,251,882,893,344,654
  5. Step 5: Solve for x
    x = 12,251,882,893,344,654/128,063,687.06
  6. Step 6: Final answer
    x = 95,670,233.89

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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.