Home / 825,867,441.60-1,238,801,162.40-458,535,422.40

Finding the Fourth Proportional to 825,867,441.60, 1,238,801,162.40 and 458,535,422.40

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Solution

The fourth proportional to 825,867,441.60, 1,238,801,162.40 and 458,535,422.40 is: 687,803,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,867,441.60 : 1,238,801,162.40 = 458,535,422.40 : x
  2. Step 2: Convert to fraction form
    825,867,441.60/1,238,801,162.40 = 458,535,422.40/x
  3. Step 3: Cross multiply
    825,867,441.60x = 1,238,801,162.40 × 458,535,422.40
  4. Step 4: Simplify right side
    825,867,441.60x = 568,034,214,270,695,040
  5. Step 5: Solve for x
    x = 568,034,214,270,695,040/825,867,441.60
  6. Step 6: Final answer
    x = 687,803,133.60

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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.