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Finding the Fourth Proportional to 86,581,475.60, 129,872,213.40 and 53,702,992.40

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Solution

The fourth proportional to 86,581,475.60, 129,872,213.40 and 53,702,992.40 is: 80,554,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,581,475.60 : 129,872,213.40 = 53,702,992.40 : x
  2. Step 2: Convert to fraction form
    86,581,475.60/129,872,213.40 = 53,702,992.40/x
  3. Step 3: Cross multiply
    86,581,475.60x = 129,872,213.40 × 53,702,992.40
  4. Step 4: Simplify right side
    86,581,475.60x = 6,974,526,489,191,378
  5. Step 5: Solve for x
    x = 6,974,526,489,191,378/86,581,475.60
  6. Step 6: Final answer
    x = 80,554,488.60

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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.