Home / 13,186,865.20-19,780,297.80-8,085,031.60

Finding the Fourth Proportional to 13,186,865.20, 19,780,297.80 and 8,085,031.60

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Solution

The fourth proportional to 13,186,865.20, 19,780,297.80 and 8,085,031.60 is: 12,127,547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186,865.20 : 19,780,297.80 = 8,085,031.60 : x
  2. Step 2: Convert to fraction form
    13,186,865.20/19,780,297.80 = 8,085,031.60/x
  3. Step 3: Cross multiply
    13,186,865.20x = 19,780,297.80 × 8,085,031.60
  4. Step 4: Simplify right side
    13,186,865.20x = 159,924,332,770,410.47
  5. Step 5: Solve for x
    x = 159,924,332,770,410.47/13,186,865.20
  6. Step 6: Final answer
    x = 12,127,547.40

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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.