Home / 128,633,835.31-177,514,306.25-69,896,679.64

Finding the Fourth Proportional to 128,633,835.31, 177,514,306.25 and 69,896,679.64

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Solution

The fourth proportional to 128,633,835.31, 177,514,306.25 and 69,896,679.64 is: 96,457,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,633,835.31 : 177,514,306.25 = 69,896,679.64 : x
  2. Step 2: Convert to fraction form
    128,633,835.31/177,514,306.25 = 69,896,679.64/x
  3. Step 3: Cross multiply
    128,633,835.31x = 177,514,306.25 × 69,896,679.64
  4. Step 4: Simplify right side
    128,633,835.31x = 12,407,660,594,679,832
  5. Step 5: Solve for x
    x = 12,407,660,594,679,832/128,633,835.31
  6. Step 6: Final answer
    x = 96,457,207.90

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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.