Home / 38,218,770-52,741,115.28-20,815,421.04

Finding the Fourth Proportional to 38,218,770, 52,741,115.28 and 20,815,421.04

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Solution

The fourth proportional to 38,218,770, 52,741,115.28 and 20,815,421.04 is: 28,724,852.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218,770 : 52,741,115.28 = 20,815,421.04 : x
  2. Step 2: Convert to fraction form
    38,218,770/52,741,115.28 = 20,815,421.04/x
  3. Step 3: Cross multiply
    38,218,770x = 52,741,115.28 × 20,815,421.04
  4. Step 4: Simplify right side
    38,218,770x = 1,097,828,520,672,377.50
  5. Step 5: Solve for x
    x = 1,097,828,520,672,377.50/38,218,770
  6. Step 6: Final answer
    x = 28,724,852.23

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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.