Home / 12,885,823.05-17,781,981.53-7,084,560.15

Finding the Fourth Proportional to 12,885,823.05, 17,781,981.53 and 7,084,560.15

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Solution

The fourth proportional to 12,885,823.05, 17,781,981.53 and 7,084,560.15 is: 9,776,443.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885,823.05 : 17,781,981.53 = 7,084,560.15 : x
  2. Step 2: Convert to fraction form
    12,885,823.05/17,781,981.53 = 7,084,560.15/x
  3. Step 3: Cross multiply
    12,885,823.05x = 17,781,981.53 × 7,084,560.15
  4. Step 4: Simplify right side
    12,885,823.05x = 125,977,517,700,051.22
  5. Step 5: Solve for x
    x = 125,977,517,700,051.22/12,885,823.05
  6. Step 6: Final answer
    x = 9,776,443.24

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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.