Home / 10,386,021.20-15,579,031.80-8,616,549.20

Finding the Fourth Proportional to 10,386,021.20, 15,579,031.80 and 8,616,549.20

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Solution

The fourth proportional to 10,386,021.20, 15,579,031.80 and 8,616,549.20 is: 12,924,823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386,021.20 : 15,579,031.80 = 8,616,549.20 : x
  2. Step 2: Convert to fraction form
    10,386,021.20/15,579,031.80 = 8,616,549.20/x
  3. Step 3: Cross multiply
    10,386,021.20x = 15,579,031.80 × 8,616,549.20
  4. Step 4: Simplify right side
    10,386,021.20x = 134,237,493,993,064.56
  5. Step 5: Solve for x
    x = 134,237,493,993,064.56/10,386,021.20
  6. Step 6: Final answer
    x = 12,924,823.80

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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.