Home / 38,687,950.71-53,389,371.65-21,283,922.43

Finding the Fourth Proportional to 38,687,950.71, 53,389,371.65 and 21,283,922.43

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Solution

The fourth proportional to 38,687,950.71, 53,389,371.65 and 21,283,922.43 is: 29,371,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,687,950.71 : 53,389,371.65 = 21,283,922.43 : x
  2. Step 2: Convert to fraction form
    38,687,950.71/53,389,371.65 = 21,283,922.43/x
  3. Step 3: Cross multiply
    38,687,950.71x = 53,389,371.65 × 21,283,922.43
  4. Step 4: Simplify right side
    38,687,950.71x = 1,136,335,244,678,621.50
  5. Step 5: Solve for x
    x = 1,136,335,244,678,621.50/38,687,950.71
  6. Step 6: Final answer
    x = 29,371,812.77

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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.