Home / 12,671,760.42-18,976,639.32-11,443,541.72

Finding the Fourth Proportional to 12,671,760.42, 18,976,639.32 and 11,443,541.72

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Solution

The fourth proportional to 12,671,760.42, 18,976,639.32 and 11,443,541.72 is: 17,137,316.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,760.42 : 18,976,639.32 = 11,443,541.72 : x
  2. Step 2: Convert to fraction form
    12,671,760.42/18,976,639.32 = 11,443,541.72/x
  3. Step 3: Cross multiply
    12,671,760.42x = 18,976,639.32 × 11,443,541.72
  4. Step 4: Simplify right side
    12,671,760.42x = 217,159,963,668,929.25
  5. Step 5: Solve for x
    x = 217,159,963,668,929.25/12,671,760.42
  6. Step 6: Final answer
    x = 17,137,316.08

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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.