Home / 8,125,114.60-12,190,782.30-7,997,588.20

Finding the Fourth Proportional to 8,125,114.60, 12,190,782.30 and 7,997,588.20

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Solution

The fourth proportional to 8,125,114.60, 12,190,782.30 and 7,997,588.20 is: 11,999,443.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125,114.60 : 12,190,782.30 = 7,997,588.20 : x
  2. Step 2: Convert to fraction form
    8,125,114.60/12,190,782.30 = 7,997,588.20/x
  3. Step 3: Cross multiply
    8,125,114.60x = 12,190,782.30 × 7,997,588.20
  4. Step 4: Simplify right side
    8,125,114.60x = 97,496,856,671,248.88
  5. Step 5: Solve for x
    x = 97,496,856,671,248.88/8,125,114.60
  6. Step 6: Final answer
    x = 11,999,443.88

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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.