Home / 13,252,534.20-19,878,801.30-7,190,170.20

Finding the Fourth Proportional to 13,252,534.20, 19,878,801.30 and 7,190,170.20

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Solution

The fourth proportional to 13,252,534.20, 19,878,801.30 and 7,190,170.20 is: 10,785,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252,534.20 : 19,878,801.30 = 7,190,170.20 : x
  2. Step 2: Convert to fraction form
    13,252,534.20/19,878,801.30 = 7,190,170.20/x
  3. Step 3: Cross multiply
    13,252,534.20x = 19,878,801.30 × 7,190,170.20
  4. Step 4: Simplify right side
    13,252,534.20x = 142,931,964,718,981.28
  5. Step 5: Solve for x
    x = 142,931,964,718,981.28/13,252,534.20
  6. Step 6: Final answer
    x = 10,785,255.30

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Double scale
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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.