Home / 127,726,502.40-176,212,558.08-78,748,899.84

Finding the Fourth Proportional to 127,726,502.40, 176,212,558.08 and 78,748,899.84

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Solution

The fourth proportional to 127,726,502.40, 176,212,558.08 and 78,748,899.84 is: 108,642,645.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,726,502.40 : 176,212,558.08 = 78,748,899.84 : x
  2. Step 2: Convert to fraction form
    127,726,502.40/176,212,558.08 = 78,748,899.84/x
  3. Step 3: Cross multiply
    127,726,502.40x = 176,212,558.08 × 78,748,899.84
  4. Step 4: Simplify right side
    127,726,502.40x = 13,876,545,086,792,104
  5. Step 5: Solve for x
    x = 13,876,545,086,792,104/127,726,502.40
  6. Step 6: Final answer
    x = 108,642,645.23

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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.