Home / 145,673,531.20-218,475,304.80-84,129,601.60

Finding the Fourth Proportional to 145,673,531.20, 218,475,304.80 and 84,129,601.60

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Solution

The fourth proportional to 145,673,531.20, 218,475,304.80 and 84,129,601.60 is: 126,174,193.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,673,531.20 : 218,475,304.80 = 84,129,601.60 : x
  2. Step 2: Convert to fraction form
    145,673,531.20/218,475,304.80 = 84,129,601.60/x
  3. Step 3: Cross multiply
    145,673,531.20x = 218,475,304.80 × 84,129,601.60
  4. Step 4: Simplify right side
    145,673,531.20x = 18,380,240,352,262,568
  5. Step 5: Solve for x
    x = 18,380,240,352,262,568/145,673,531.20
  6. Step 6: Final answer
    x = 126,174,193.77

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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.