Home / 12,128,416.65-18,188,196.30-4,041,656.10

Finding the Fourth Proportional to 12,128,416.65, 18,188,196.30 and 4,041,656.10

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Solution

The fourth proportional to 12,128,416.65, 18,188,196.30 and 4,041,656.10 is: 6,061,008.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,416.65 : 18,188,196.30 = 4,041,656.10 : x
  2. Step 2: Convert to fraction form
    12,128,416.65/18,188,196.30 = 4,041,656.10/x
  3. Step 3: Cross multiply
    12,128,416.65x = 18,188,196.30 × 4,041,656.10
  4. Step 4: Simplify right side
    12,128,416.65x = 73,510,434,523,892.44
  5. Step 5: Solve for x
    x = 73,510,434,523,892.44/12,128,416.65
  6. Step 6: Final answer
    x = 6,061,008.34

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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.