Home / 21,971,318.40-32,956,977.60-10,612,915.20

Finding the Fourth Proportional to 21,971,318.40, 32,956,977.60 and 10,612,915.20

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Solution

The fourth proportional to 21,971,318.40, 32,956,977.60 and 10,612,915.20 is: 15,919,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,971,318.40 : 32,956,977.60 = 10,612,915.20 : x
  2. Step 2: Convert to fraction form
    21,971,318.40/32,956,977.60 = 10,612,915.20/x
  3. Step 3: Cross multiply
    21,971,318.40x = 32,956,977.60 × 10,612,915.20
  4. Step 4: Simplify right side
    21,971,318.40x = 349,769,608,517,099.50
  5. Step 5: Solve for x
    x = 349,769,608,517,099.50/21,971,318.40
  6. Step 6: Final answer
    x = 15,919,372.80

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1.5x scale

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.