Home / 13,007,420.20-19,490,135.10-10,865,909.80

Finding the Fourth Proportional to 13,007,420.20, 19,490,135.10 and 10,865,909.80

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Solution

The fourth proportional to 13,007,420.20, 19,490,135.10 and 10,865,909.80 is: 16,281,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,007,420.20 : 19,490,135.10 = 10,865,909.80 : x
  2. Step 2: Convert to fraction form
    13,007,420.20/19,490,135.10 = 10,865,909.80/x
  3. Step 3: Cross multiply
    13,007,420.20x = 19,490,135.10 × 10,865,909.80
  4. Step 4: Simplify right side
    13,007,420.20x = 211,778,049,986,414
  5. Step 5: Solve for x
    x = 211,778,049,986,414/13,007,420.20
  6. Step 6: Final answer
    x = 16,281,326.10

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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.