Home / 143,709,456.87-215,582,112.56-56,259,677.80

Finding the Fourth Proportional to 143,709,456.87, 215,582,112.56 and 56,259,677.80

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Solution

The fourth proportional to 143,709,456.87, 215,582,112.56 and 56,259,677.80 is: 84,396,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,709,456.87 : 215,582,112.56 = 56,259,677.80 : x
  2. Step 2: Convert to fraction form
    143,709,456.87/215,582,112.56 = 56,259,677.80/x
  3. Step 3: Cross multiply
    143,709,456.87x = 215,582,112.56 × 56,259,677.80
  4. Step 4: Simplify right side
    143,709,456.87x = 12,128,580,192,479,060
  5. Step 5: Solve for x
    x = 12,128,580,192,479,060/143,709,456.87
  6. Step 6: Final answer
    x = 84,396,534.90

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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.