Home / 218,610,019.26-327,972,459.78-78,564,616.23

Finding the Fourth Proportional to 218,610,019.26, 327,972,459.78 and 78,564,616.23

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Solution

The fourth proportional to 218,610,019.26, 327,972,459.78 and 78,564,616.23 is: 117,867,564.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,610,019.26 : 327,972,459.78 = 78,564,616.23 : x
  2. Step 2: Convert to fraction form
    218,610,019.26/327,972,459.78 = 78,564,616.23/x
  3. Step 3: Cross multiply
    218,610,019.26x = 327,972,459.78 × 78,564,616.23
  4. Step 4: Simplify right side
    218,610,019.26x = 25,767,030,436,624,808
  5. Step 5: Solve for x
    x = 25,767,030,436,624,808/218,610,019.26
  6. Step 6: Final answer
    x = 117,867,564.00

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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.