Home / 15,528,363.71-21,429,227.05-9,005,860.37

Finding the Fourth Proportional to 15,528,363.71, 21,429,227.05 and 9,005,860.37

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Solution

The fourth proportional to 15,528,363.71, 21,429,227.05 and 9,005,860.37 is: 12,428,136.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,528,363.71 : 21,429,227.05 = 9,005,860.37 : x
  2. Step 2: Convert to fraction form
    15,528,363.71/21,429,227.05 = 9,005,860.37/x
  3. Step 3: Cross multiply
    15,528,363.71x = 21,429,227.05 × 9,005,860.37
  4. Step 4: Simplify right side
    15,528,363.71x = 192,988,626,680,385.44
  5. Step 5: Solve for x
    x = 192,988,626,680,385.44/15,528,363.71
  6. Step 6: Final answer
    x = 12,428,136.69

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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.