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Finding the Fourth Proportional to 82,264,984.70, 123,397,477.05 and 20,854,024.70

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Solution

The fourth proportional to 82,264,984.70, 123,397,477.05 and 20,854,024.70 is: 31,281,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,264,984.70 : 123,397,477.05 = 20,854,024.70 : x
  2. Step 2: Convert to fraction form
    82,264,984.70/123,397,477.05 = 20,854,024.70/x
  3. Step 3: Cross multiply
    82,264,984.70x = 123,397,477.05 × 20,854,024.70
  4. Step 4: Simplify right side
    82,264,984.70x = 2,573,334,034,318,383
  5. Step 5: Solve for x
    x = 2,573,334,034,318,383/82,264,984.70
  6. Step 6: Final answer
    x = 31,281,037.05

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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.