Home / 142,591,771.76-196,779,773.40-86,839,805.04

Finding the Fourth Proportional to 142,591,771.76, 196,779,773.40 and 86,839,805.04

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Solution

The fourth proportional to 142,591,771.76, 196,779,773.40 and 86,839,805.04 is: 119,840,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,591,771.76 : 196,779,773.40 = 86,839,805.04 : x
  2. Step 2: Convert to fraction form
    142,591,771.76/196,779,773.40 = 86,839,805.04/x
  3. Step 3: Cross multiply
    142,591,771.76x = 196,779,773.40 × 86,839,805.04
  4. Step 4: Simplify right side
    142,591,771.76x = 17,088,317,157,871,380
  5. Step 5: Solve for x
    x = 17,088,317,157,871,380/142,591,771.76
  6. Step 6: Final answer
    x = 119,840,836.16

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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.