Home / 12,900,413.76-17,802,340.74-7,019,847.36

Finding the Fourth Proportional to 12,900,413.76, 17,802,340.74 and 7,019,847.36

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Solution

The fourth proportional to 12,900,413.76, 17,802,340.74 and 7,019,847.36 is: 9,687,264.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,413.76 : 17,802,340.74 = 7,019,847.36 : x
  2. Step 2: Convert to fraction form
    12,900,413.76/17,802,340.74 = 7,019,847.36/x
  3. Step 3: Cross multiply
    12,900,413.76x = 17,802,340.74 × 7,019,847.36
  4. Step 4: Simplify right side
    12,900,413.76x = 124,969,714,645,509.44
  5. Step 5: Solve for x
    x = 124,969,714,645,509.44/12,900,413.76
  6. Step 6: Final answer
    x = 9,687,264.07

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1.5x scale

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.