Home / 10,298,413.20-15,447,619.80-7,914,291.60

Finding the Fourth Proportional to 10,298,413.20, 15,447,619.80 and 7,914,291.60

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Solution

The fourth proportional to 10,298,413.20, 15,447,619.80 and 7,914,291.60 is: 11,871,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,298,413.20 : 15,447,619.80 = 7,914,291.60 : x
  2. Step 2: Convert to fraction form
    10,298,413.20/15,447,619.80 = 7,914,291.60/x
  3. Step 3: Cross multiply
    10,298,413.20x = 15,447,619.80 × 7,914,291.60
  4. Step 4: Simplify right side
    10,298,413.20x = 122,256,967,623,133.69
  5. Step 5: Solve for x
    x = 122,256,967,623,133.69/10,298,413.20
  6. Step 6: Final answer
    x = 11,871,437.40

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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.