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Finding the Fourth Proportional to 85,418,496,000.65, 128,127,744,000.98 and 85,418,496,000.65

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Solution

The fourth proportional to 85,418,496,000.65, 128,127,744,000.98 and 85,418,496,000.65 is: 128,127,744,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,418,496,000.65 : 128,127,744,000.98 = 85,418,496,000.65 : x
  2. Step 2: Convert to fraction form
    85,418,496,000.65/128,127,744,000.98 = 85,418,496,000.65/x
  3. Step 3: Cross multiply
    85,418,496,000.65x = 128,127,744,000.98 × 85,418,496,000.65
  4. Step 4: Simplify right side
    85,418,496,000.65x = 10,944,479,188,520,016,019,456
  5. Step 5: Solve for x
    x = 10,944,479,188,520,016,019,456/85,418,496,000.65
  6. Step 6: Final answer
    x = 128,127,744,000.98

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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.