Home / 138,930,191.70-208,117,417.58-83,567,465.65

Finding the Fourth Proportional to 138,930,191.70, 208,117,417.58 and 83,567,465.65

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Solution

The fourth proportional to 138,930,191.70, 208,117,417.58 and 83,567,465.65 is: 125,184,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,930,191.70 : 208,117,417.58 = 83,567,465.65 : x
  2. Step 2: Convert to fraction form
    138,930,191.70/208,117,417.58 = 83,567,465.65/x
  3. Step 3: Cross multiply
    138,930,191.70x = 208,117,417.58 × 83,567,465.65
  4. Step 4: Simplify right side
    138,930,191.70x = 17,391,845,144,471,230
  5. Step 5: Solve for x
    x = 17,391,845,144,471,230/138,930,191.70
  6. Step 6: Final answer
    x = 125,184,057.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.