Home / 217,224,007.70-325,836,011.55-80,881,178.90

Finding the Fourth Proportional to 217,224,007.70, 325,836,011.55 and 80,881,178.90

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Solution

The fourth proportional to 217,224,007.70, 325,836,011.55 and 80,881,178.90 is: 121,321,768.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,224,007.70 : 325,836,011.55 = 80,881,178.90 : x
  2. Step 2: Convert to fraction form
    217,224,007.70/325,836,011.55 = 80,881,178.90/x
  3. Step 3: Cross multiply
    217,224,007.70x = 325,836,011.55 × 80,881,178.90
  4. Step 4: Simplify right side
    217,224,007.70x = 26,354,000,742,238,020
  5. Step 5: Solve for x
    x = 26,354,000,742,238,020/217,224,007.70
  6. Step 6: Final answer
    x = 121,321,768.35

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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.