Home / 28,717,042.60-43,075,563.90-20,654,885.80

Finding the Fourth Proportional to 28,717,042.60, 43,075,563.90 and 20,654,885.80

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Solution

The fourth proportional to 28,717,042.60, 43,075,563.90 and 20,654,885.80 is: 30,982,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,717,042.60 : 43,075,563.90 = 20,654,885.80 : x
  2. Step 2: Convert to fraction form
    28,717,042.60/43,075,563.90 = 20,654,885.80/x
  3. Step 3: Cross multiply
    28,717,042.60x = 43,075,563.90 × 20,654,885.80
  4. Step 4: Simplify right side
    28,717,042.60x = 889,720,853,125,102.62
  5. Step 5: Solve for x
    x = 889,720,853,125,102.62/28,717,042.60
  6. Step 6: Final answer
    x = 30,982,328.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.