Home / 137,070,616.64-189,155,687.34-78,332,608.04

Finding the Fourth Proportional to 137,070,616.64, 189,155,687.34 and 78,332,608.04

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Solution

The fourth proportional to 137,070,616.64, 189,155,687.34 and 78,332,608.04 is: 108,097,991.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,070,616.64 : 189,155,687.34 = 78,332,608.04 : x
  2. Step 2: Convert to fraction form
    137,070,616.64/189,155,687.34 = 78,332,608.04/x
  3. Step 3: Cross multiply
    137,070,616.64x = 189,155,687.34 × 78,332,608.04
  4. Step 4: Simplify right side
    137,070,616.64x = 14,817,058,314,941,012
  5. Step 5: Solve for x
    x = 14,817,058,314,941,012/137,070,616.64
  6. Step 6: Final answer
    x = 108,097,991.23

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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.