Home / 143,546,279.80-215,062,811.70-87,356,903.80

Finding the Fourth Proportional to 143,546,279.80, 215,062,811.70 and 87,356,903.80

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Solution

The fourth proportional to 143,546,279.80, 215,062,811.70 and 87,356,903.80 is: 130,879,193.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,546,279.80 : 215,062,811.70 = 87,356,903.80 : x
  2. Step 2: Convert to fraction form
    143,546,279.80/215,062,811.70 = 87,356,903.80/x
  3. Step 3: Cross multiply
    143,546,279.80x = 215,062,811.70 × 87,356,903.80
  4. Step 4: Simplify right side
    143,546,279.80x = 18,787,221,352,634,412
  5. Step 5: Solve for x
    x = 18,787,221,352,634,412/143,546,279.80
  6. Step 6: Final answer
    x = 130,879,193.66

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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.