Home / 38,480,942.49-53,103,044.28-20,839,701.75

Finding the Fourth Proportional to 38,480,942.49, 53,103,044.28 and 20,839,701.75

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Solution

The fourth proportional to 38,480,942.49, 53,103,044.28 and 20,839,701.75 is: 28,758,432.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480,942.49 : 53,103,044.28 = 20,839,701.75 : x
  2. Step 2: Convert to fraction form
    38,480,942.49/53,103,044.28 = 20,839,701.75/x
  3. Step 3: Cross multiply
    38,480,942.49x = 53,103,044.28 × 20,839,701.75
  4. Step 4: Simplify right side
    38,480,942.49x = 1,106,651,604,812,243.50
  5. Step 5: Solve for x
    x = 1,106,651,604,812,243.50/38,480,942.49
  6. Step 6: Final answer
    x = 28,758,432.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.