Home / 13,028,695.20-19,543,042.80-10,938,506.40

Finding the Fourth Proportional to 13,028,695.20, 19,543,042.80 and 10,938,506.40

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Solution

The fourth proportional to 13,028,695.20, 19,543,042.80 and 10,938,506.40 is: 16,407,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028,695.20 : 19,543,042.80 = 10,938,506.40 : x
  2. Step 2: Convert to fraction form
    13,028,695.20/19,543,042.80 = 10,938,506.40/x
  3. Step 3: Cross multiply
    13,028,695.20x = 19,543,042.80 × 10,938,506.40
  4. Step 4: Simplify right side
    13,028,695.20x = 213,771,698,743,273.94
  5. Step 5: Solve for x
    x = 213,771,698,743,273.94/13,028,695.20
  6. Step 6: Final answer
    x = 16,407,759.60

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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.