Home / 82,997,008.20-124,495,512.30-39,855,808.80

Finding the Fourth Proportional to 82,997,008.20, 124,495,512.30 and 39,855,808.80

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Solution

The fourth proportional to 82,997,008.20, 124,495,512.30 and 39,855,808.80 is: 59,783,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,997,008.20 : 124,495,512.30 = 39,855,808.80 : x
  2. Step 2: Convert to fraction form
    82,997,008.20/124,495,512.30 = 39,855,808.80/x
  3. Step 3: Cross multiply
    82,997,008.20x = 124,495,512.30 × 39,855,808.80
  4. Step 4: Simplify right side
    82,997,008.20x = 4,961,869,334,686,848
  5. Step 5: Solve for x
    x = 4,961,869,334,686,848/82,997,008.20
  6. Step 6: Final answer
    x = 59,783,713.20

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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.