Home / 20,853,406.10-31,280,109.15-19,436,230.10

Finding the Fourth Proportional to 20,853,406.10, 31,280,109.15 and 19,436,230.10

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Solution

The fourth proportional to 20,853,406.10, 31,280,109.15 and 19,436,230.10 is: 29,154,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,406.10 : 31,280,109.15 = 19,436,230.10 : x
  2. Step 2: Convert to fraction form
    20,853,406.10/31,280,109.15 = 19,436,230.10/x
  3. Step 3: Cross multiply
    20,853,406.10x = 31,280,109.15 × 19,436,230.10
  4. Step 4: Simplify right side
    20,853,406.10x = 607,967,398,992,515.38
  5. Step 5: Solve for x
    x = 607,967,398,992,515.38/20,853,406.10
  6. Step 6: Final answer
    x = 29,154,345.15

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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.