Home / 142,315,862,713.83-196,399,504,082.94-78,086,570,000.11

Finding the Fourth Proportional to 142,315,862,713.83, 196,399,504,082.94 and 78,086,570,000.11

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Solution

The fourth proportional to 142,315,862,713.83, 196,399,504,082.94 and 78,086,570,000.11 is: 107,761,449,293.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,315,862,713.83 : 196,399,504,082.94 = 78,086,570,000.11 : x
  2. Step 2: Convert to fraction form
    142,315,862,713.83/196,399,504,082.94 = 78,086,570,000.11/x
  3. Step 3: Cross multiply
    142,315,862,713.83x = 196,399,504,082.94 × 78,086,570,000.11
  4. Step 4: Simplify right side
    142,315,862,713.83x = 15,336,163,623,558,793,134,080
  5. Step 5: Solve for x
    x = 15,336,163,623,558,793,134,080/142,315,862,713.83
  6. Step 6: Final answer
    x = 107,761,449,293.93

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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.