Home / 13,913,139.30-20,869,708.95-9,661,611.30

Finding the Fourth Proportional to 13,913,139.30, 20,869,708.95 and 9,661,611.30

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Solution

The fourth proportional to 13,913,139.30, 20,869,708.95 and 9,661,611.30 is: 14,492,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,913,139.30 : 20,869,708.95 = 9,661,611.30 : x
  2. Step 2: Convert to fraction form
    13,913,139.30/20,869,708.95 = 9,661,611.30/x
  3. Step 3: Cross multiply
    13,913,139.30x = 20,869,708.95 × 9,661,611.30
  4. Step 4: Simplify right side
    13,913,139.30x = 201,635,015,819,031.16
  5. Step 5: Solve for x
    x = 201,635,015,819,031.16/13,913,139.30
  6. Step 6: Final answer
    x = 14,492,416.95

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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.