Home / 57,024,985.60-85,536,700.80-18,687,750.40

Finding the Fourth Proportional to 57,024,985.60, 85,536,700.80 and 18,687,750.40

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Solution

The fourth proportional to 57,024,985.60, 85,536,700.80 and 18,687,750.40 is: 28,031,370.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,024,985.60 : 85,536,700.80 = 18,687,750.40 : x
  2. Step 2: Convert to fraction form
    57,024,985.60/85,536,700.80 = 18,687,750.40/x
  3. Step 3: Cross multiply
    57,024,985.60x = 85,536,700.80 × 18,687,750.40
  4. Step 4: Simplify right side
    57,024,985.60x = 1,598,488,514,589,880.25
  5. Step 5: Solve for x
    x = 1,598,488,514,589,880.25/57,024,985.60
  6. Step 6: Final answer
    x = 28,031,370.77

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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.