Home / 289,007,215.33-398,829,956.81-156,848,211.84

Finding the Fourth Proportional to 289,007,215.33, 398,829,956.81 and 156,848,211.84

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Solution

The fourth proportional to 289,007,215.33, 398,829,956.81 and 156,848,211.84 is: 216,450,532.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,007,215.33 : 398,829,956.81 = 156,848,211.84 : x
  2. Step 2: Convert to fraction form
    289,007,215.33/398,829,956.81 = 156,848,211.84/x
  3. Step 3: Cross multiply
    289,007,215.33x = 398,829,956.81 × 156,848,211.84
  4. Step 4: Simplify right side
    289,007,215.33x = 62,555,765,553,872,936
  5. Step 5: Solve for x
    x = 62,555,765,553,872,936/289,007,215.33
  6. Step 6: Final answer
    x = 216,450,532.16

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Why These Related Problems?

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