Home / 20,778,047.90-31,167,071.85-16,998,911.90

Finding the Fourth Proportional to 20,778,047.90, 31,167,071.85 and 16,998,911.90

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Solution

The fourth proportional to 20,778,047.90, 31,167,071.85 and 16,998,911.90 is: 25,498,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,047.90 : 31,167,071.85 = 16,998,911.90 : x
  2. Step 2: Convert to fraction form
    20,778,047.90/31,167,071.85 = 16,998,911.90/x
  3. Step 3: Cross multiply
    20,778,047.90x = 31,167,071.85 × 16,998,911.90
  4. Step 4: Simplify right side
    20,778,047.90x = 529,806,308,559,120
  5. Step 5: Solve for x
    x = 529,806,308,559,120/20,778,047.90
  6. Step 6: Final answer
    x = 25,498,367.85

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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.