Home / 12,485,792.16-17,228,053.68-7,898,885.28

Finding the Fourth Proportional to 12,485,792.16, 17,228,053.68 and 7,898,885.28

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Solution

The fourth proportional to 12,485,792.16, 17,228,053.68 and 7,898,885.28 is: 10,898,981.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,792.16 : 17,228,053.68 = 7,898,885.28 : x
  2. Step 2: Convert to fraction form
    12,485,792.16/17,228,053.68 = 7,898,885.28/x
  3. Step 3: Cross multiply
    12,485,792.16x = 17,228,053.68 × 7,898,885.28
  4. Step 4: Simplify right side
    12,485,792.16x = 136,082,419,616,001.83
  5. Step 5: Solve for x
    x = 136,082,419,616,001.83/12,485,792.16
  6. Step 6: Final answer
    x = 10,898,981.65

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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.