Home / 358,707,981.60-538,061,972.40-355,306,759.20

Finding the Fourth Proportional to 358,707,981.60, 538,061,972.40 and 355,306,759.20

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Solution

The fourth proportional to 358,707,981.60, 538,061,972.40 and 355,306,759.20 is: 532,960,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,707,981.60 : 538,061,972.40 = 355,306,759.20 : x
  2. Step 2: Convert to fraction form
    358,707,981.60/538,061,972.40 = 355,306,759.20/x
  3. Step 3: Cross multiply
    358,707,981.60x = 538,061,972.40 × 355,306,759.20
  4. Step 4: Simplify right side
    358,707,981.60x = 191,177,055,662,203,840
  5. Step 5: Solve for x
    x = 191,177,055,662,203,840/358,707,981.60
  6. Step 6: Final answer
    x = 532,960,138.80

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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.