Home / 489,329,279.60-733,993,919.40-198,335,807.60

Finding the Fourth Proportional to 489,329,279.60, 733,993,919.40 and 198,335,807.60

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Solution

The fourth proportional to 489,329,279.60, 733,993,919.40 and 198,335,807.60 is: 297,503,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,329,279.60 : 733,993,919.40 = 198,335,807.60 : x
  2. Step 2: Convert to fraction form
    489,329,279.60/733,993,919.40 = 198,335,807.60/x
  3. Step 3: Cross multiply
    489,329,279.60x = 733,993,919.40 × 198,335,807.60
  4. Step 4: Simplify right side
    489,329,279.60x = 145,577,276,777,688,288
  5. Step 5: Solve for x
    x = 145,577,276,777,688,288/489,329,279.60
  6. Step 6: Final answer
    x = 297,503,711.40

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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.