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Finding the Fourth Proportional to 218,482,855.20, 327,682,292.40 and 65,133,914.40

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Solution

The fourth proportional to 218,482,855.20, 327,682,292.40 and 65,133,914.40 is: 97,688,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,482,855.20 : 327,682,292.40 = 65,133,914.40 : x
  2. Step 2: Convert to fraction form
    218,482,855.20/327,682,292.40 = 65,133,914.40/x
  3. Step 3: Cross multiply
    218,482,855.20x = 327,682,292.40 × 65,133,914.40
  4. Step 4: Simplify right side
    218,482,855.20x = 21,343,230,383,577,368
  5. Step 5: Solve for x
    x = 21,343,230,383,577,368/218,482,855.20
  6. Step 6: Final answer
    x = 97,688,353.46

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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.