Home / 12,864,060.25-19,277,949.18-7,109,385.28

Finding the Fourth Proportional to 12,864,060.25, 19,277,949.18 and 7,109,385.28

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Solution

The fourth proportional to 12,864,060.25, 19,277,949.18 and 7,109,385.28 is: 10,654,052.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864,060.25 : 19,277,949.18 = 7,109,385.28 : x
  2. Step 2: Convert to fraction form
    12,864,060.25/19,277,949.18 = 7,109,385.28/x
  3. Step 3: Cross multiply
    12,864,060.25x = 19,277,949.18 × 7,109,385.28
  4. Step 4: Simplify right side
    12,864,060.25x = 137,054,368,128,880.08
  5. Step 5: Solve for x
    x = 137,054,368,128,880.08/12,864,060.25
  6. Step 6: Final answer
    x = 10,654,052.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.