Home / 20,566,752.96-28,383,014.88-11,399,403

Finding the Fourth Proportional to 20,566,752.96, 28,383,014.88 and 11,399,403

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Solution

The fourth proportional to 20,566,752.96, 28,383,014.88 and 11,399,403 is: 15,731,672.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,566,752.96 : 28,383,014.88 = 11,399,403 : x
  2. Step 2: Convert to fraction form
    20,566,752.96/28,383,014.88 = 11,399,403/x
  3. Step 3: Cross multiply
    20,566,752.96x = 28,383,014.88 × 11,399,403
  4. Step 4: Simplify right side
    20,566,752.96x = 323,549,424,972,116.62
  5. Step 5: Solve for x
    x = 323,549,424,972,116.62/20,566,752.96
  6. Step 6: Final answer
    x = 15,731,672.65

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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.