Home / 15,145,010.64-20,900,031.93-8,269,443.45

Finding the Fourth Proportional to 15,145,010.64, 20,900,031.93 and 8,269,443.45

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Solution

The fourth proportional to 15,145,010.64, 20,900,031.93 and 8,269,443.45 is: 11,411,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145,010.64 : 20,900,031.93 = 8,269,443.45 : x
  2. Step 2: Convert to fraction form
    15,145,010.64/20,900,031.93 = 8,269,443.45/x
  3. Step 3: Cross multiply
    15,145,010.64x = 20,900,031.93 × 8,269,443.45
  4. Step 4: Simplify right side
    15,145,010.64x = 172,831,632,148,329.38
  5. Step 5: Solve for x
    x = 172,831,632,148,329.38/15,145,010.64
  6. Step 6: Final answer
    x = 11,411,786.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.