Home / 12,438,046.30-18,657,069.45-11,430,276.70

Finding the Fourth Proportional to 12,438,046.30, 18,657,069.45 and 11,430,276.70

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Solution

The fourth proportional to 12,438,046.30, 18,657,069.45 and 11,430,276.70 is: 17,145,415.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438,046.30 : 18,657,069.45 = 11,430,276.70 : x
  2. Step 2: Convert to fraction form
    12,438,046.30/18,657,069.45 = 11,430,276.70/x
  3. Step 3: Cross multiply
    12,438,046.30x = 18,657,069.45 × 11,430,276.70
  4. Step 4: Simplify right side
    12,438,046.30x = 213,255,466,224,616.78
  5. Step 5: Solve for x
    x = 213,255,466,224,616.78/12,438,046.30
  6. Step 6: Final answer
    x = 17,145,415.05

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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.