Home / 20,346,589.50-28,071,349.11-12,608,808.54

Finding the Fourth Proportional to 20,346,589.50, 28,071,349.11 and 12,608,808.54

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Solution

The fourth proportional to 20,346,589.50, 28,071,349.11 and 12,608,808.54 is: 17,395,852.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346,589.50 : 28,071,349.11 = 12,608,808.54 : x
  2. Step 2: Convert to fraction form
    20,346,589.50/28,071,349.11 = 12,608,808.54/x
  3. Step 3: Cross multiply
    20,346,589.50x = 28,071,349.11 × 12,608,808.54
  4. Step 4: Simplify right side
    20,346,589.50x = 353,946,266,387,489.38
  5. Step 5: Solve for x
    x = 353,946,266,387,489.38/20,346,589.50
  6. Step 6: Final answer
    x = 17,395,852.33

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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.