Home / 21,261,459.80-31,866,280.12-11,020,673.74

Finding the Fourth Proportional to 21,261,459.80, 31,866,280.12 and 11,020,673.74

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Solution

The fourth proportional to 21,261,459.80, 31,866,280.12 and 11,020,673.74 is: 16,517,580.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,459.80 : 31,866,280.12 = 11,020,673.74 : x
  2. Step 2: Convert to fraction form
    21,261,459.80/31,866,280.12 = 11,020,673.74/x
  3. Step 3: Cross multiply
    21,261,459.80x = 31,866,280.12 × 11,020,673.74
  4. Step 4: Simplify right side
    21,261,459.80x = 351,187,876,509,968.06
  5. Step 5: Solve for x
    x = 351,187,876,509,968.06/21,261,459.80
  6. Step 6: Final answer
    x = 16,517,580.63

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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.