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Finding the Fourth Proportional to 168,480,280.80, 252,720,421.20 and 168,480,280.80

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Solution

The fourth proportional to 168,480,280.80, 252,720,421.20 and 168,480,280.80 is: 252,720,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,480,280.80 : 252,720,421.20 = 168,480,280.80 : x
  2. Step 2: Convert to fraction form
    168,480,280.80/252,720,421.20 = 168,480,280.80/x
  3. Step 3: Cross multiply
    168,480,280.80x = 252,720,421.20 × 168,480,280.80
  4. Step 4: Simplify right side
    168,480,280.80x = 42,578,407,527,670,272
  5. Step 5: Solve for x
    x = 42,578,407,527,670,272/168,480,280.80
  6. Step 6: Final answer
    x = 252,720,421.20

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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.