Home / 289,007,214.82-398,829,956.12-156,848,211.34

Finding the Fourth Proportional to 289,007,214.82, 398,829,956.12 and 156,848,211.34

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Solution

The fourth proportional to 289,007,214.82, 398,829,956.12 and 156,848,211.34 is: 216,450,531.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,007,214.82 : 398,829,956.12 = 156,848,211.34 : x
  2. Step 2: Convert to fraction form
    289,007,214.82/398,829,956.12 = 156,848,211.34/x
  3. Step 3: Cross multiply
    289,007,214.82x = 398,829,956.12 × 156,848,211.34
  4. Step 4: Simplify right side
    289,007,214.82x = 62,555,765,245,039,552
  5. Step 5: Solve for x
    x = 62,555,765,245,039,552/289,007,214.82
  6. Step 6: Final answer
    x = 216,450,531.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.