Home / 20,778,047.40-31,167,071.10-16,998,911.40

Finding the Fourth Proportional to 20,778,047.40, 31,167,071.10 and 16,998,911.40

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Solution

The fourth proportional to 20,778,047.40, 31,167,071.10 and 16,998,911.40 is: 25,498,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,778,047.40 : 31,167,071.10 = 16,998,911.40 : x
  2. Step 2: Convert to fraction form
    20,778,047.40/31,167,071.10 = 16,998,911.40/x
  3. Step 3: Cross multiply
    20,778,047.40x = 31,167,071.10 × 16,998,911.40
  4. Step 4: Simplify right side
    20,778,047.40x = 529,806,280,226,400.50
  5. Step 5: Solve for x
    x = 529,806,280,226,400.50/20,778,047.40
  6. Step 6: Final answer
    x = 25,498,367.10

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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.