Home / 78,223,551.12-107,947,707.12-43,416,542.16

Finding the Fourth Proportional to 78,223,551.12, 107,947,707.12 and 43,416,542.16

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Solution

The fourth proportional to 78,223,551.12, 107,947,707.12 and 43,416,542.16 is: 59,914,387.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,223,551.12 : 107,947,707.12 = 43,416,542.16 : x
  2. Step 2: Convert to fraction form
    78,223,551.12/107,947,707.12 = 43,416,542.16/x
  3. Step 3: Cross multiply
    78,223,551.12x = 107,947,707.12 × 43,416,542.16
  4. Step 4: Simplify right side
    78,223,551.12x = 4,686,716,177,250,812
  5. Step 5: Solve for x
    x = 4,686,716,177,250,812/78,223,551.12
  6. Step 6: Final answer
    x = 59,914,387.80

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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.