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Finding the Fourth Proportional to 12,480,914.40, 18,700,376.40 and 10,675,327.20

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Solution

The fourth proportional to 12,480,914.40, 18,700,376.40 and 10,675,327.20 is: 15,995,032.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,914.40 : 18,700,376.40 = 10,675,327.20 : x
  2. Step 2: Convert to fraction form
    12,480,914.40/18,700,376.40 = 10,675,327.20/x
  3. Step 3: Cross multiply
    12,480,914.40x = 18,700,376.40 × 10,675,327.20
  4. Step 4: Simplify right side
    12,480,914.40x = 199,632,636,833,158.06
  5. Step 5: Solve for x
    x = 199,632,636,833,158.06/12,480,914.40
  6. Step 6: Final answer
    x = 15,995,032.93

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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.