Home / 127,111,251.40-175,412,821.80-71,356,657

Finding the Fourth Proportional to 127,111,251.40, 175,412,821.80 and 71,356,657

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Solution

The fourth proportional to 127,111,251.40, 175,412,821.80 and 71,356,657 is: 98,471,790.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,111,251.40 : 175,412,821.80 = 71,356,657 : x
  2. Step 2: Convert to fraction form
    127,111,251.40/175,412,821.80 = 71,356,657/x
  3. Step 3: Cross multiply
    127,111,251.40x = 175,412,821.80 × 71,356,657
  4. Step 4: Simplify right side
    127,111,251.40x = 12,516,872,558,584,724
  5. Step 5: Solve for x
    x = 12,516,872,558,584,724/127,111,251.40
  6. Step 6: Final answer
    x = 98,471,790.82

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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.