Home / 99,647,929.40-149,471,894.10-31,490,621.15

Finding the Fourth Proportional to 99,647,929.40, 149,471,894.10 and 31,490,621.15

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Solution

The fourth proportional to 99,647,929.40, 149,471,894.10 and 31,490,621.15 is: 47,235,931.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,647,929.40 : 149,471,894.10 = 31,490,621.15 : x
  2. Step 2: Convert to fraction form
    99,647,929.40/149,471,894.10 = 31,490,621.15/x
  3. Step 3: Cross multiply
    99,647,929.40x = 149,471,894.10 × 31,490,621.15
  4. Step 4: Simplify right side
    99,647,929.40x = 4,706,962,789,676,020
  5. Step 5: Solve for x
    x = 4,706,962,789,676,020/99,647,929.40
  6. Step 6: Final answer
    x = 47,235,931.73

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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.