Home / 13,487,000.80-20,230,501.20-12,258,781.60

Finding the Fourth Proportional to 13,487,000.80, 20,230,501.20 and 12,258,781.60

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Solution

The fourth proportional to 13,487,000.80, 20,230,501.20 and 12,258,781.60 is: 18,388,172.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487,000.80 : 20,230,501.20 = 12,258,781.60 : x
  2. Step 2: Convert to fraction form
    13,487,000.80/20,230,501.20 = 12,258,781.60/x
  3. Step 3: Cross multiply
    13,487,000.80x = 20,230,501.20 × 12,258,781.60
  4. Step 4: Simplify right side
    13,487,000.80x = 248,001,295,869,337.91
  5. Step 5: Solve for x
    x = 248,001,295,869,337.91/13,487,000.80
  6. Step 6: Final answer
    x = 18,388,172.40

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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.