Home / 20,363,569.20-28,101,006.36-11,196,140.40

Finding the Fourth Proportional to 20,363,569.20, 28,101,006.36 and 11,196,140.40

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Solution

The fourth proportional to 20,363,569.20, 28,101,006.36 and 11,196,140.40 is: 15,450,278.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363,569.20 : 28,101,006.36 = 11,196,140.40 : x
  2. Step 2: Convert to fraction form
    20,363,569.20/28,101,006.36 = 11,196,140.40/x
  3. Step 3: Cross multiply
    20,363,569.20x = 28,101,006.36 × 11,196,140.40
  4. Step 4: Simplify right side
    20,363,569.20x = 314,622,812,587,852.94
  5. Step 5: Solve for x
    x = 314,622,812,587,852.94/20,363,569.20
  6. Step 6: Final answer
    x = 15,450,278.36

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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.