Home / 136,855,645.61-188,859,227.24-74,130,561.05

Finding the Fourth Proportional to 136,855,645.61, 188,859,227.24 and 74,130,561.05

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Solution

The fourth proportional to 136,855,645.61, 188,859,227.24 and 74,130,561.05 is: 102,299,327.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,855,645.61 : 188,859,227.24 = 74,130,561.05 : x
  2. Step 2: Convert to fraction form
    136,855,645.61/188,859,227.24 = 74,130,561.05/x
  3. Step 3: Cross multiply
    136,855,645.61x = 188,859,227.24 × 74,130,561.05
  4. Step 4: Simplify right side
    136,855,645.61x = 14,000,240,474,770,644
  5. Step 5: Solve for x
    x = 14,000,240,474,770,644/136,855,645.61
  6. Step 6: Final answer
    x = 102,299,327.24

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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.