Home / 73,871,999.20-110,807,998.80-69,903,906.40

Finding the Fourth Proportional to 73,871,999.20, 110,807,998.80 and 69,903,906.40

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Solution

The fourth proportional to 73,871,999.20, 110,807,998.80 and 69,903,906.40 is: 104,855,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,871,999.20 : 110,807,998.80 = 69,903,906.40 : x
  2. Step 2: Convert to fraction form
    73,871,999.20/110,807,998.80 = 69,903,906.40/x
  3. Step 3: Cross multiply
    73,871,999.20x = 110,807,998.80 × 69,903,906.40
  4. Step 4: Simplify right side
    73,871,999.20x = 7,745,911,976,486,513
  5. Step 5: Solve for x
    x = 7,745,911,976,486,513/73,871,999.20
  6. Step 6: Final answer
    x = 104,855,859.60

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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.