Home / 115,982,164.80-173,973,247.20-77,761,569.60

Finding the Fourth Proportional to 115,982,164.80, 173,973,247.20 and 77,761,569.60

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Solution

The fourth proportional to 115,982,164.80, 173,973,247.20 and 77,761,569.60 is: 116,642,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,982,164.80 : 173,973,247.20 = 77,761,569.60 : x
  2. Step 2: Convert to fraction form
    115,982,164.80/173,973,247.20 = 77,761,569.60/x
  3. Step 3: Cross multiply
    115,982,164.80x = 173,973,247.20 × 77,761,569.60
  4. Step 4: Simplify right side
    115,982,164.80x = 13,528,432,770,680,804
  5. Step 5: Solve for x
    x = 13,528,432,770,680,804/115,982,164.80
  6. Step 6: Final answer
    x = 116,642,354.40

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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.