Home / 21,018,889.80-31,528,334.70-5,872,821.30

Finding the Fourth Proportional to 21,018,889.80, 31,528,334.70 and 5,872,821.30

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Solution

The fourth proportional to 21,018,889.80, 31,528,334.70 and 5,872,821.30 is: 8,809,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,889.80 : 31,528,334.70 = 5,872,821.30 : x
  2. Step 2: Convert to fraction form
    21,018,889.80/31,528,334.70 = 5,872,821.30/x
  3. Step 3: Cross multiply
    21,018,889.80x = 31,528,334.70 × 5,872,821.30
  4. Step 4: Simplify right side
    21,018,889.80x = 185,160,275,579,689.09
  5. Step 5: Solve for x
    x = 185,160,275,579,689.09/21,018,889.80
  6. Step 6: Final answer
    x = 8,809,231.95

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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.