Home / 86,327,126.80-129,490,690.20-82,345,814.80

Finding the Fourth Proportional to 86,327,126.80, 129,490,690.20 and 82,345,814.80

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Solution

The fourth proportional to 86,327,126.80, 129,490,690.20 and 82,345,814.80 is: 123,518,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,327,126.80 : 129,490,690.20 = 82,345,814.80 : x
  2. Step 2: Convert to fraction form
    86,327,126.80/129,490,690.20 = 82,345,814.80/x
  3. Step 3: Cross multiply
    86,327,126.80x = 129,490,690.20 × 82,345,814.80
  4. Step 4: Simplify right side
    86,327,126.80x = 10,663,016,393,533,374
  5. Step 5: Solve for x
    x = 10,663,016,393,533,374/86,327,126.80
  6. Step 6: Final answer
    x = 123,518,722.20

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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.