Home / 28,479,742.77-39,302,233.71-15,427,001.70

Finding the Fourth Proportional to 28,479,742.77, 39,302,233.71 and 15,427,001.70

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Solution

The fourth proportional to 28,479,742.77, 39,302,233.71 and 15,427,001.70 is: 21,289,364.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,479,742.77 : 39,302,233.71 = 15,427,001.70 : x
  2. Step 2: Convert to fraction form
    28,479,742.77/39,302,233.71 = 15,427,001.70/x
  3. Step 3: Cross multiply
    28,479,742.77x = 39,302,233.71 × 15,427,001.70
  4. Step 4: Simplify right side
    28,479,742.77x = 606,315,626,257,967.25
  5. Step 5: Solve for x
    x = 606,315,626,257,967.25/28,479,742.77
  6. Step 6: Final answer
    x = 21,289,364.55

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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.