Home / 215,449,007.90-323,218,906.07-69,871,218.30

Finding the Fourth Proportional to 215,449,007.90, 323,218,906.07 and 69,871,218.30

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Solution

The fourth proportional to 215,449,007.90, 323,218,906.07 and 69,871,218.30 is: 104,821,549.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,449,007.90 : 323,218,906.07 = 69,871,218.30 : x
  2. Step 2: Convert to fraction form
    215,449,007.90/323,218,906.07 = 69,871,218.30/x
  3. Step 3: Cross multiply
    215,449,007.90x = 323,218,906.07 × 69,871,218.30
  4. Step 4: Simplify right side
    215,449,007.90x = 22,583,698,744,354,808
  5. Step 5: Solve for x
    x = 22,583,698,744,354,808/215,449,007.90
  6. Step 6: Final answer
    x = 104,821,549.03

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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.