Home / 268,336,857.20-402,292,709.40-147,168,309.20

Finding the Fourth Proportional to 268,336,857.20, 402,292,709.40 and 147,168,309.20

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Solution

The fourth proportional to 268,336,857.20, 402,292,709.40 and 147,168,309.20 is: 220,635,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,336,857.20 : 402,292,709.40 = 147,168,309.20 : x
  2. Step 2: Convert to fraction form
    268,336,857.20/402,292,709.40 = 147,168,309.20/x
  3. Step 3: Cross multiply
    268,336,857.20x = 402,292,709.40 × 147,168,309.20
  4. Step 4: Simplify right side
    268,336,857.20x = 59,204,737,845,884,936
  5. Step 5: Solve for x
    x = 59,204,737,845,884,936/268,336,857.20
  6. Step 6: Final answer
    x = 220,635,877.10

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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.