Home / 39,312,288.80-58,968,433.20-20,136,672.80

Finding the Fourth Proportional to 39,312,288.80, 58,968,433.20 and 20,136,672.80

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Solution

The fourth proportional to 39,312,288.80, 58,968,433.20 and 20,136,672.80 is: 30,205,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312,288.80 : 58,968,433.20 = 20,136,672.80 : x
  2. Step 2: Convert to fraction form
    39,312,288.80/58,968,433.20 = 20,136,672.80/x
  3. Step 3: Cross multiply
    39,312,288.80x = 58,968,433.20 × 20,136,672.80
  4. Step 4: Simplify right side
    39,312,288.80x = 1,187,428,044,877,057
  5. Step 5: Solve for x
    x = 1,187,428,044,877,057/39,312,288.80
  6. Step 6: Final answer
    x = 30,205,009.20

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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.