Home / 20,373,612.86-28,127,206.60-13,507,395.14

Finding the Fourth Proportional to 20,373,612.86, 28,127,206.60 and 13,507,395.14

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Solution

The fourth proportional to 20,373,612.86, 28,127,206.60 and 13,507,395.14 is: 18,647,909.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,373,612.86 : 28,127,206.60 = 13,507,395.14 : x
  2. Step 2: Convert to fraction form
    20,373,612.86/28,127,206.60 = 13,507,395.14/x
  3. Step 3: Cross multiply
    20,373,612.86x = 28,127,206.60 × 13,507,395.14
  4. Step 4: Simplify right side
    20,373,612.86x = 379,925,293,730,615.94
  5. Step 5: Solve for x
    x = 379,925,293,730,615.94/20,373,612.86
  6. Step 6: Final answer
    x = 18,647,909.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.