Home / 20,864,720.16-28,760,056.05-16,447,246.71

Finding the Fourth Proportional to 20,864,720.16, 28,760,056.05 and 16,447,246.71

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Solution

The fourth proportional to 20,864,720.16, 28,760,056.05 and 16,447,246.71 is: 22,670,984.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,864,720.16 : 28,760,056.05 = 16,447,246.71 : x
  2. Step 2: Convert to fraction form
    20,864,720.16/28,760,056.05 = 16,447,246.71/x
  3. Step 3: Cross multiply
    20,864,720.16x = 28,760,056.05 × 16,447,246.71
  4. Step 4: Simplify right side
    20,864,720.16x = 473,023,737,247,778.12
  5. Step 5: Solve for x
    x = 473,023,737,247,778.12/20,864,720.16
  6. Step 6: Final answer
    x = 22,670,984.02

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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.