Home / 21,259,407.40-31,893,776.70-6,880,028.20

Finding the Fourth Proportional to 21,259,407.40, 31,893,776.70 and 6,880,028.20

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Solution

The fourth proportional to 21,259,407.40, 31,893,776.70 and 6,880,028.20 is: 10,321,552.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,259,407.40 : 31,893,776.70 = 6,880,028.20 : x
  2. Step 2: Convert to fraction form
    21,259,407.40/31,893,776.70 = 6,880,028.20/x
  3. Step 3: Cross multiply
    21,259,407.40x = 31,893,776.70 × 6,880,028.20
  4. Step 4: Simplify right side
    21,259,407.40x = 219,430,083,100,502.94
  5. Step 5: Solve for x
    x = 219,430,083,100,502.94/21,259,407.40
  6. Step 6: Final answer
    x = 10,321,552.19

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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.