Home / 21,813,478.31-30,103,946.87-12,023,900.42

Finding the Fourth Proportional to 21,813,478.31, 30,103,946.87 and 12,023,900.42

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Solution

The fourth proportional to 21,813,478.31, 30,103,946.87 and 12,023,900.42 is: 16,593,724.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813,478.31 : 30,103,946.87 = 12,023,900.42 : x
  2. Step 2: Convert to fraction form
    21,813,478.31/30,103,946.87 = 12,023,900.42/x
  3. Step 3: Cross multiply
    21,813,478.31x = 30,103,946.87 × 12,023,900.42
  4. Step 4: Simplify right side
    21,813,478.31x = 361,966,859,203,211.38
  5. Step 5: Solve for x
    x = 361,966,859,203,211.38/21,813,478.31
  6. Step 6: Final answer
    x = 16,593,724.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.