Home / 10,020,999.90-15,031,499.85-8,586,109.20

Finding the Fourth Proportional to 10,020,999.90, 15,031,499.85 and 8,586,109.20

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Solution

The fourth proportional to 10,020,999.90, 15,031,499.85 and 8,586,109.20 is: 12,879,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020,999.90 : 15,031,499.85 = 8,586,109.20 : x
  2. Step 2: Convert to fraction form
    10,020,999.90/15,031,499.85 = 8,586,109.20/x
  3. Step 3: Cross multiply
    10,020,999.90x = 15,031,499.85 × 8,586,109.20
  4. Step 4: Simplify right side
    10,020,999.90x = 129,062,099,151,883.61
  5. Step 5: Solve for x
    x = 129,062,099,151,883.61/10,020,999.90
  6. Step 6: Final answer
    x = 12,879,163.80

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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.