Home / 209,871,109.70-314,847,014.70-80,468,628.20

Finding the Fourth Proportional to 209,871,109.70, 314,847,014.70 and 80,468,628.20

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Solution

The fourth proportional to 209,871,109.70, 314,847,014.70 and 80,468,628.20 is: 120,718,413.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,871,109.70 : 314,847,014.70 = 80,468,628.20 : x
  2. Step 2: Convert to fraction form
    209,871,109.70/314,847,014.70 = 80,468,628.20/x
  3. Step 3: Cross multiply
    209,871,109.70x = 314,847,014.70 × 80,468,628.20
  4. Step 4: Simplify right side
    209,871,109.70x = 25,335,307,365,774,236
  5. Step 5: Solve for x
    x = 25,335,307,365,774,236/209,871,109.70
  6. Step 6: Final answer
    x = 120,718,413.33

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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.