Home / 12,281,878.20-18,389,639.70-9,627,670.20

Finding the Fourth Proportional to 12,281,878.20, 18,389,639.70 and 9,627,670.20

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Solution

The fourth proportional to 12,281,878.20, 18,389,639.70 and 9,627,670.20 is: 14,415,497.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281,878.20 : 18,389,639.70 = 9,627,670.20 : x
  2. Step 2: Convert to fraction form
    12,281,878.20/18,389,639.70 = 9,627,670.20/x
  3. Step 3: Cross multiply
    12,281,878.20x = 18,389,639.70 × 9,627,670.20
  4. Step 4: Simplify right side
    12,281,878.20x = 177,049,386,128,426.91
  5. Step 5: Solve for x
    x = 177,049,386,128,426.91/12,281,878.20
  6. Step 6: Final answer
    x = 14,415,497.63

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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.