Home / 20,915,876.04-28,859,431.48-12,210,097.44

Finding the Fourth Proportional to 20,915,876.04, 28,859,431.48 and 12,210,097.44

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Solution

The fourth proportional to 20,915,876.04, 28,859,431.48 and 12,210,097.44 is: 16,847,320.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,876.04 : 28,859,431.48 = 12,210,097.44 : x
  2. Step 2: Convert to fraction form
    20,915,876.04/28,859,431.48 = 12,210,097.44/x
  3. Step 3: Cross multiply
    20,915,876.04x = 28,859,431.48 × 12,210,097.44
  4. Step 4: Simplify right side
    20,915,876.04x = 352,376,470,433,803.38
  5. Step 5: Solve for x
    x = 352,376,470,433,803.38/20,915,876.04
  6. Step 6: Final answer
    x = 16,847,320.66

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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.