Home / 28,947,315.78-39,947,295.96-15,894,574.76

Finding the Fourth Proportional to 28,947,315.78, 39,947,295.96 and 15,894,574.76

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Solution

The fourth proportional to 28,947,315.78, 39,947,295.96 and 15,894,574.76 is: 21,934,513.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,947,315.78 : 39,947,295.96 = 15,894,574.76 : x
  2. Step 2: Convert to fraction form
    28,947,315.78/39,947,295.96 = 15,894,574.76/x
  3. Step 3: Cross multiply
    28,947,315.78x = 39,947,295.96 × 15,894,574.76
  4. Step 4: Simplify right side
    28,947,315.78x = 634,945,282,195,934.25
  5. Step 5: Solve for x
    x = 634,945,282,195,934.25/28,947,315.78
  6. Step 6: Final answer
    x = 21,934,513.27

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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.