Home / 20,778,882.40-31,168,323.60-5,632,813.90

Finding the Fourth Proportional to 20,778,882.40, 31,168,323.60 and 5,632,813.90

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Solution

The fourth proportional to 20,778,882.40, 31,168,323.60 and 5,632,813.90 is: 8,449,220.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,882.40 : 31,168,323.60 = 5,632,813.90 : x
  2. Step 2: Convert to fraction form
    20,778,882.40/31,168,323.60 = 5,632,813.90/x
  3. Step 3: Cross multiply
    20,778,882.40x = 31,168,323.60 × 5,632,813.90
  4. Step 4: Simplify right side
    20,778,882.40x = 175,565,366,413,778.06
  5. Step 5: Solve for x
    x = 175,565,366,413,778.06/20,778,882.40
  6. Step 6: Final answer
    x = 8,449,220.85

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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.