Home / 687,744,995.40-1,032,040,437.30-273,149,281.80

Finding the Fourth Proportional to 687,744,995.40, 1,032,040,437.30 and 273,149,281.80

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Solution

The fourth proportional to 687,744,995.40, 1,032,040,437.30 and 273,149,281.80 is: 409,891,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,744,995.40 : 1,032,040,437.30 = 273,149,281.80 : x
  2. Step 2: Convert to fraction form
    687,744,995.40/1,032,040,437.30 = 273,149,281.80/x
  3. Step 3: Cross multiply
    687,744,995.40x = 1,032,040,437.30 × 273,149,281.80
  4. Step 4: Simplify right side
    687,744,995.40x = 281,901,104,237,052,928
  5. Step 5: Solve for x
    x = 281,901,104,237,052,928/687,744,995.40
  6. Step 6: Final answer
    x = 409,891,901.97

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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.