Home / 268,151,072.40-402,189,283.80-86,416,621.20

Finding the Fourth Proportional to 268,151,072.40, 402,189,283.80 and 86,416,621.20

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Solution

The fourth proportional to 268,151,072.40, 402,189,283.80 and 86,416,621.20 is: 129,612,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,151,072.40 : 402,189,283.80 = 86,416,621.20 : x
  2. Step 2: Convert to fraction form
    268,151,072.40/402,189,283.80 = 86,416,621.20/x
  3. Step 3: Cross multiply
    268,151,072.40x = 402,189,283.80 × 86,416,621.20
  4. Step 4: Simplify right side
    268,151,072.40x = 34,755,838,988,843,900
  5. Step 5: Solve for x
    x = 34,755,838,988,843,900/268,151,072.40
  6. Step 6: Final answer
    x = 129,612,903.20

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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.