Home / 20,219,812.40-30,329,718.60-11,610,468.20

Finding the Fourth Proportional to 20,219,812.40, 30,329,718.60 and 11,610,468.20

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Solution

The fourth proportional to 20,219,812.40, 30,329,718.60 and 11,610,468.20 is: 17,415,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,812.40 : 30,329,718.60 = 11,610,468.20 : x
  2. Step 2: Convert to fraction form
    20,219,812.40/30,329,718.60 = 11,610,468.20/x
  3. Step 3: Cross multiply
    20,219,812.40x = 30,329,718.60 × 11,610,468.20
  4. Step 4: Simplify right side
    20,219,812.40x = 352,142,233,320,248.50
  5. Step 5: Solve for x
    x = 352,142,233,320,248.50/20,219,812.40
  6. Step 6: Final answer
    x = 17,415,702.30

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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.