Home / 21,312,362.16-31,960,608.51-7,661,783.43

Finding the Fourth Proportional to 21,312,362.16, 31,960,608.51 and 7,661,783.43

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Solution

The fourth proportional to 21,312,362.16, 31,960,608.51 and 7,661,783.43 is: 11,489,822.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,362.16 : 31,960,608.51 = 7,661,783.43 : x
  2. Step 2: Convert to fraction form
    21,312,362.16/31,960,608.51 = 7,661,783.43/x
  3. Step 3: Cross multiply
    21,312,362.16x = 31,960,608.51 × 7,661,783.43
  4. Step 4: Simplify right side
    21,312,362.16x = 244,875,260,694,635
  5. Step 5: Solve for x
    x = 244,875,260,694,635/21,312,362.16
  6. Step 6: Final answer
    x = 11,489,822.61

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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.