Home / 13,479,389.40-20,219,084.10-10,290,743.40

Finding the Fourth Proportional to 13,479,389.40, 20,219,084.10 and 10,290,743.40

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Solution

The fourth proportional to 13,479,389.40, 20,219,084.10 and 10,290,743.40 is: 15,436,115.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,389.40 : 20,219,084.10 = 10,290,743.40 : x
  2. Step 2: Convert to fraction form
    13,479,389.40/20,219,084.10 = 10,290,743.40/x
  3. Step 3: Cross multiply
    13,479,389.40x = 20,219,084.10 × 10,290,743.40
  4. Step 4: Simplify right side
    13,479,389.40x = 208,069,406,256,119.97
  5. Step 5: Solve for x
    x = 208,069,406,256,119.97/13,479,389.40
  6. Step 6: Final answer
    x = 15,436,115.10

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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.