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Finding the Fourth Proportional to 13,206,490.40, 18,451,295.20 and 13,206,490.40

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Solution

The fourth proportional to 13,206,490.40, 18,451,295.20 and 13,206,490.40 is: 18,451,295.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,490.40 : 18,451,295.20 = 13,206,490.40 : x
  2. Step 2: Convert to fraction form
    13,206,490.40/18,451,295.20 = 13,206,490.40/x
  3. Step 3: Cross multiply
    13,206,490.40x = 18,451,295.20 × 13,206,490.40
  4. Step 4: Simplify right side
    13,206,490.40x = 243,676,852,926,366.06
  5. Step 5: Solve for x
    x = 243,676,852,926,366.06/13,206,490.40
  6. Step 6: Final answer
    x = 18,451,295.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.