Home / 431,684,111.40-647,526,167.10-300,170,178.60

Finding the Fourth Proportional to 431,684,111.40, 647,526,167.10 and 300,170,178.60

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Solution

The fourth proportional to 431,684,111.40, 647,526,167.10 and 300,170,178.60 is: 450,255,267.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,684,111.40 : 647,526,167.10 = 300,170,178.60 : x
  2. Step 2: Convert to fraction form
    431,684,111.40/647,526,167.10 = 300,170,178.60/x
  3. Step 3: Cross multiply
    431,684,111.40x = 647,526,167.10 × 300,170,178.60
  4. Step 4: Simplify right side
    431,684,111.40x = 194,368,045,226,580,480
  5. Step 5: Solve for x
    x = 194,368,045,226,580,480/431,684,111.40
  6. Step 6: Final answer
    x = 450,255,267.90

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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.