Home / 21,991,807.40-32,931,723.90-20,984,037.80

Finding the Fourth Proportional to 21,991,807.40, 32,931,723.90 and 20,984,037.80

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Solution

The fourth proportional to 21,991,807.40, 32,931,723.90 and 20,984,037.80 is: 31,422,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,991,807.40 : 32,931,723.90 = 20,984,037.80 : x
  2. Step 2: Convert to fraction form
    21,991,807.40/32,931,723.90 = 20,984,037.80/x
  3. Step 3: Cross multiply
    21,991,807.40x = 32,931,723.90 × 20,984,037.80
  4. Step 4: Simplify right side
    21,991,807.40x = 691,040,539,136,763.38
  5. Step 5: Solve for x
    x = 691,040,539,136,763.38/21,991,807.40
  6. Step 6: Final answer
    x = 31,422,635.10

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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.