Home / 115,981,804.80-173,972,707.20-77,761,209.60

Finding the Fourth Proportional to 115,981,804.80, 173,972,707.20 and 77,761,209.60

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Solution

The fourth proportional to 115,981,804.80, 173,972,707.20 and 77,761,209.60 is: 116,641,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,981,804.80 : 173,972,707.20 = 77,761,209.60 : x
  2. Step 2: Convert to fraction form
    115,981,804.80/173,972,707.20 = 77,761,209.60/x
  3. Step 3: Cross multiply
    115,981,804.80x = 173,972,707.20 × 77,761,209.60
  4. Step 4: Simplify right side
    115,981,804.80x = 13,528,328,149,258,628
  5. Step 5: Solve for x
    x = 13,528,328,149,258,628/115,981,804.80
  6. Step 6: Final answer
    x = 116,641,814.40

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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.