Home / 142,062,194.40-213,192,824.40-91,068,223.20

Finding the Fourth Proportional to 142,062,194.40, 213,192,824.40 and 91,068,223.20

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Solution

The fourth proportional to 142,062,194.40, 213,192,824.40 and 91,068,223.20 is: 136,666,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,062,194.40 : 213,192,824.40 = 91,068,223.20 : x
  2. Step 2: Convert to fraction form
    142,062,194.40/213,192,824.40 = 91,068,223.20/x
  3. Step 3: Cross multiply
    142,062,194.40x = 213,192,824.40 × 91,068,223.20
  4. Step 4: Simplify right side
    142,062,194.40x = 19,415,091,717,097,608
  5. Step 5: Solve for x
    x = 19,415,091,717,097,608/142,062,194.40
  6. Step 6: Final answer
    x = 136,666,139.78

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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.