Home / 31,152,023.60-46,728,035.40-20,402,481.20

Finding the Fourth Proportional to 31,152,023.60, 46,728,035.40 and 20,402,481.20

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Solution

The fourth proportional to 31,152,023.60, 46,728,035.40 and 20,402,481.20 is: 30,603,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,152,023.60 : 46,728,035.40 = 20,402,481.20 : x
  2. Step 2: Convert to fraction form
    31,152,023.60/46,728,035.40 = 20,402,481.20/x
  3. Step 3: Cross multiply
    31,152,023.60x = 46,728,035.40 × 20,402,481.20
  4. Step 4: Simplify right side
    31,152,023.60x = 953,367,863,761,434.38
  5. Step 5: Solve for x
    x = 953,367,863,761,434.38/31,152,023.60
  6. Step 6: Final answer
    x = 30,603,721.80

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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.