Home / 12,145,545,008.20-18,218,317,512.30-9,696,664,880.20

Finding the Fourth Proportional to 12,145,545,008.20, 18,218,317,512.30 and 9,696,664,880.20

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Solution

The fourth proportional to 12,145,545,008.20, 18,218,317,512.30 and 9,696,664,880.20 is: 14,544,997,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,545,008.20 : 18,218,317,512.30 = 9,696,664,880.20 : x
  2. Step 2: Convert to fraction form
    12,145,545,008.20/18,218,317,512.30 = 9,696,664,880.20/x
  3. Step 3: Cross multiply
    12,145,545,008.20x = 18,218,317,512.30 × 9,696,664,880.20
  4. Step 4: Simplify right side
    12,145,545,008.20x = 176,656,919,597,852,033,024
  5. Step 5: Solve for x
    x = 176,656,919,597,852,033,024/12,145,545,008.20
  6. Step 6: Final answer
    x = 14,544,997,320.30

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1.5x scale

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.