Home / 12,915,137.02-19,372,730.10-12,125,947.12

Finding the Fourth Proportional to 12,915,137.02, 19,372,730.10 and 12,125,947.12

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Solution

The fourth proportional to 12,915,137.02, 19,372,730.10 and 12,125,947.12 is: 18,188,943.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915,137.02 : 19,372,730.10 = 12,125,947.12 : x
  2. Step 2: Convert to fraction form
    12,915,137.02/19,372,730.10 = 12,125,947.12/x
  3. Step 3: Cross multiply
    12,915,137.02x = 19,372,730.10 × 12,125,947.12
  4. Step 4: Simplify right side
    12,915,137.02x = 234,912,700,762,632.31
  5. Step 5: Solve for x
    x = 234,912,700,762,632.31/12,915,137.02
  6. Step 6: Final answer
    x = 18,188,943.75

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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.