Home / 15,780,617.40-23,670,926.10-12,943,932.60

Finding the Fourth Proportional to 15,780,617.40, 23,670,926.10 and 12,943,932.60

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Solution

The fourth proportional to 15,780,617.40, 23,670,926.10 and 12,943,932.60 is: 19,415,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780,617.40 : 23,670,926.10 = 12,943,932.60 : x
  2. Step 2: Convert to fraction form
    15,780,617.40/23,670,926.10 = 12,943,932.60/x
  3. Step 3: Cross multiply
    15,780,617.40x = 23,670,926.10 × 12,943,932.60
  4. Step 4: Simplify right side
    15,780,617.40x = 306,394,872,017,980.88
  5. Step 5: Solve for x
    x = 306,394,872,017,980.88/15,780,617.40
  6. Step 6: Final answer
    x = 19,415,898.90

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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.