Home / 20,421,884.04-28,182,199.56-11,254,526.82

Finding the Fourth Proportional to 20,421,884.04, 28,182,199.56 and 11,254,526.82

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Solution

The fourth proportional to 20,421,884.04, 28,182,199.56 and 11,254,526.82 is: 15,531,246.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,884.04 : 28,182,199.56 = 11,254,526.82 : x
  2. Step 2: Convert to fraction form
    20,421,884.04/28,182,199.56 = 11,254,526.82/x
  3. Step 3: Cross multiply
    20,421,884.04x = 28,182,199.56 × 11,254,526.82
  4. Step 4: Simplify right side
    20,421,884.04x = 317,177,320,794,612.19
  5. Step 5: Solve for x
    x = 317,177,320,794,612.19/20,421,884.04
  6. Step 6: Final answer
    x = 15,531,246.78

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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.