Home / 12,489,268.20-18,705,908.70-10,249,780.20

Finding the Fourth Proportional to 12,489,268.20, 18,705,908.70 and 10,249,780.20

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Solution

The fourth proportional to 12,489,268.20, 18,705,908.70 and 10,249,780.20 is: 15,351,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489,268.20 : 18,705,908.70 = 10,249,780.20 : x
  2. Step 2: Convert to fraction form
    12,489,268.20/18,705,908.70 = 10,249,780.20/x
  3. Step 3: Cross multiply
    12,489,268.20x = 18,705,908.70 × 10,249,780.20
  4. Step 4: Simplify right side
    12,489,268.20x = 191,731,452,616,267.72
  5. Step 5: Solve for x
    x = 191,731,452,616,267.72/12,489,268.20
  6. Step 6: Final answer
    x = 15,351,696.32

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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.