Home / 13,125,655.80-19,688,483.70-12,327,838.20

Finding the Fourth Proportional to 13,125,655.80, 19,688,483.70 and 12,327,838.20

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Solution

The fourth proportional to 13,125,655.80, 19,688,483.70 and 12,327,838.20 is: 18,491,757.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125,655.80 : 19,688,483.70 = 12,327,838.20 : x
  2. Step 2: Convert to fraction form
    13,125,655.80/19,688,483.70 = 12,327,838.20/x
  3. Step 3: Cross multiply
    13,125,655.80x = 19,688,483.70 × 12,327,838.20
  4. Step 4: Simplify right side
    13,125,655.80x = 242,716,441,456,937.31
  5. Step 5: Solve for x
    x = 242,716,441,456,937.31/13,125,655.80
  6. Step 6: Final answer
    x = 18,491,757.30

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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.