Home / 12,885,764.86-17,781,900.63-7,084,502.29

Finding the Fourth Proportional to 12,885,764.86, 17,781,900.63 and 7,084,502.29

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Solution

The fourth proportional to 12,885,764.86, 17,781,900.63 and 7,084,502.29 is: 9,776,363.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,885,764.86 : 17,781,900.63 = 7,084,502.29 : x
  2. Step 2: Convert to fraction form
    12,885,764.86/17,781,900.63 = 7,084,502.29/x
  3. Step 3: Cross multiply
    12,885,764.86x = 17,781,900.63 × 7,084,502.29
  4. Step 4: Simplify right side
    12,885,764.86x = 125,975,915,733,787.44
  5. Step 5: Solve for x
    x = 125,975,915,733,787.44/12,885,764.86
  6. Step 6: Final answer
    x = 9,776,363.07

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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.