Home / 142,728,835.60-196,597,373.25-100,840,187.08

Finding the Fourth Proportional to 142,728,835.60, 196,597,373.25 and 100,840,187.08

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Solution

The fourth proportional to 142,728,835.60, 196,597,373.25 and 100,840,187.08 is: 138,899,163.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,728,835.60 : 196,597,373.25 = 100,840,187.08 : x
  2. Step 2: Convert to fraction form
    142,728,835.60/196,597,373.25 = 100,840,187.08/x
  3. Step 3: Cross multiply
    142,728,835.60x = 196,597,373.25 × 100,840,187.08
  4. Step 4: Simplify right side
    142,728,835.60x = 19,824,915,897,966,588
  5. Step 5: Solve for x
    x = 19,824,915,897,966,588/142,728,835.60
  6. Step 6: Final answer
    x = 138,899,163.68

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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.