Home / 17,255,142.80-25,892,045.40-7,672,000.40

Finding the Fourth Proportional to 17,255,142.80, 25,892,045.40 and 7,672,000.40

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Solution

The fourth proportional to 17,255,142.80, 25,892,045.40 and 7,672,000.40 is: 11,512,149.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,255,142.80 : 25,892,045.40 = 7,672,000.40 : x
  2. Step 2: Convert to fraction form
    17,255,142.80/25,892,045.40 = 7,672,000.40/x
  3. Step 3: Cross multiply
    17,255,142.80x = 25,892,045.40 × 7,672,000.40
  4. Step 4: Simplify right side
    17,255,142.80x = 198,643,782,665,618.16
  5. Step 5: Solve for x
    x = 198,643,782,665,618.16/17,255,142.80
  6. Step 6: Final answer
    x = 11,512,149.45

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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.