Home / 10,221,713.20-15,332,569.80-9,101,969.20

Finding the Fourth Proportional to 10,221,713.20, 15,332,569.80 and 9,101,969.20

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Solution

The fourth proportional to 10,221,713.20, 15,332,569.80 and 9,101,969.20 is: 13,652,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221,713.20 : 15,332,569.80 = 9,101,969.20 : x
  2. Step 2: Convert to fraction form
    10,221,713.20/15,332,569.80 = 9,101,969.20/x
  3. Step 3: Cross multiply
    10,221,713.20x = 15,332,569.80 × 9,101,969.20
  4. Step 4: Simplify right side
    10,221,713.20x = 139,556,578,076,450.16
  5. Step 5: Solve for x
    x = 139,556,578,076,450.16/10,221,713.20
  6. Step 6: Final answer
    x = 13,652,953.80

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Similar ratio
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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.