Home / 13,129,413.30-18,117,851.31-7,328,567.52

Finding the Fourth Proportional to 13,129,413.30, 18,117,851.31 and 7,328,567.52

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Solution

The fourth proportional to 13,129,413.30, 18,117,851.31 and 7,328,567.52 is: 10,113,010.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129,413.30 : 18,117,851.31 = 7,328,567.52 : x
  2. Step 2: Convert to fraction form
    13,129,413.30/18,117,851.31 = 7,328,567.52/x
  3. Step 3: Cross multiply
    13,129,413.30x = 18,117,851.31 × 7,328,567.52
  4. Step 4: Simplify right side
    13,129,413.30x = 132,777,896,642,655.44
  5. Step 5: Solve for x
    x = 132,777,896,642,655.44/13,129,413.30
  6. Step 6: Final answer
    x = 10,113,010.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.