Home / 21,261,457.30-31,866,276.37-11,020,671.25

Finding the Fourth Proportional to 21,261,457.30, 31,866,276.37 and 11,020,671.25

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Solution

The fourth proportional to 21,261,457.30, 31,866,276.37 and 11,020,671.25 is: 16,517,576.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,457.30 : 31,866,276.37 = 11,020,671.25 : x
  2. Step 2: Convert to fraction form
    21,261,457.30/31,866,276.37 = 11,020,671.25/x
  3. Step 3: Cross multiply
    21,261,457.30x = 31,866,276.37 × 11,020,671.25
  4. Step 4: Simplify right side
    21,261,457.30x = 351,187,755,835,413.38
  5. Step 5: Solve for x
    x = 351,187,755,835,413.38/21,261,457.30
  6. Step 6: Final answer
    x = 16,517,576.89

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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.