Home / 21,185,787.92-31,738,572.27-12,523,955.72

Finding the Fourth Proportional to 21,185,787.92, 31,738,572.27 and 12,523,955.72

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Solution

The fourth proportional to 21,185,787.92, 31,738,572.27 and 12,523,955.72 is: 18,762,222.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,185,787.92 : 31,738,572.27 = 12,523,955.72 : x
  2. Step 2: Convert to fraction form
    21,185,787.92/31,738,572.27 = 12,523,955.72/x
  3. Step 3: Cross multiply
    21,185,787.92x = 31,738,572.27 × 12,523,955.72
  4. Step 4: Simplify right side
    21,185,787.92x = 397,492,473,566,807
  5. Step 5: Solve for x
    x = 397,492,473,566,807/21,185,787.92
  6. Step 6: Final answer
    x = 18,762,222.82

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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.