Home / 218,482,679.40-327,724,019.10-208,404,983.40

Finding the Fourth Proportional to 218,482,679.40, 327,724,019.10 and 208,404,983.40

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Solution

The fourth proportional to 218,482,679.40, 327,724,019.10 and 208,404,983.40 is: 312,607,475.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,482,679.40 : 327,724,019.10 = 208,404,983.40 : x
  2. Step 2: Convert to fraction form
    218,482,679.40/327,724,019.10 = 208,404,983.40/x
  3. Step 3: Cross multiply
    218,482,679.40x = 327,724,019.10 × 208,404,983.40
  4. Step 4: Simplify right side
    218,482,679.40x = 68,299,318,760,316,792
  5. Step 5: Solve for x
    x = 68,299,318,760,316,792/218,482,679.40
  6. Step 6: Final answer
    x = 312,607,475.10

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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.