Home / 268,153,432.40-402,192,823.80-86,418,981.20

Finding the Fourth Proportional to 268,153,432.40, 402,192,823.80 and 86,418,981.20

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Solution

The fourth proportional to 268,153,432.40, 402,192,823.80 and 86,418,981.20 is: 129,616,442.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,153,432.40 : 402,192,823.80 = 86,418,981.20 : x
  2. Step 2: Convert to fraction form
    268,153,432.40/402,192,823.80 = 86,418,981.20/x
  3. Step 3: Cross multiply
    268,153,432.40x = 402,192,823.80 × 86,418,981.20
  4. Step 4: Simplify right side
    268,153,432.40x = 34,757,094,078,747,116
  5. Step 5: Solve for x
    x = 34,757,094,078,747,116/268,153,432.40
  6. Step 6: Final answer
    x = 129,616,442.97

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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.