Home / 20,343,454.50-28,073,978.55-11,176,687.74

Finding the Fourth Proportional to 20,343,454.50, 28,073,978.55 and 11,176,687.74

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Solution

The fourth proportional to 20,343,454.50, 28,073,978.55 and 11,176,687.74 is: 15,423,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343,454.50 : 28,073,978.55 = 11,176,687.74 : x
  2. Step 2: Convert to fraction form
    20,343,454.50/28,073,978.55 = 11,176,687.74/x
  3. Step 3: Cross multiply
    20,343,454.50x = 28,073,978.55 × 11,176,687.74
  4. Step 4: Simplify right side
    20,343,454.50x = 313,774,091,872,808
  5. Step 5: Solve for x
    x = 313,774,091,872,808/20,343,454.50
  6. Step 6: Final answer
    x = 15,423,835.31

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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.