Home / 145,761,645.59-218,642,883.44-42,139,286.49

Finding the Fourth Proportional to 145,761,645.59, 218,642,883.44 and 42,139,286.49

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Solution

The fourth proportional to 145,761,645.59, 218,642,883.44 and 42,139,286.49 is: 63,209,049.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,761,645.59 : 218,642,883.44 = 42,139,286.49 : x
  2. Step 2: Convert to fraction form
    145,761,645.59/218,642,883.44 = 42,139,286.49/x
  3. Step 3: Cross multiply
    145,761,645.59x = 218,642,883.44 × 42,139,286.49
  4. Step 4: Simplify right side
    145,761,645.59x = 9,213,455,104,067,140
  5. Step 5: Solve for x
    x = 9,213,455,104,067,140/145,761,645.59
  6. Step 6: Final answer
    x = 63,209,049.73

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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.