Home / 21,264,049.60-31,896,074.40-12,156,798.40

Finding the Fourth Proportional to 21,264,049.60, 31,896,074.40 and 12,156,798.40

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Solution

The fourth proportional to 21,264,049.60, 31,896,074.40 and 12,156,798.40 is: 18,235,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264,049.60 : 31,896,074.40 = 12,156,798.40 : x
  2. Step 2: Convert to fraction form
    21,264,049.60/31,896,074.40 = 12,156,798.40/x
  3. Step 3: Cross multiply
    21,264,049.60x = 31,896,074.40 × 12,156,798.40
  4. Step 4: Simplify right side
    21,264,049.60x = 387,754,146,232,200.94
  5. Step 5: Solve for x
    x = 387,754,146,232,200.94/21,264,049.60
  6. Step 6: Final answer
    x = 18,235,197.60

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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.