Home / 272,615,885.70-408,923,828.55-163,776,768.90

Finding the Fourth Proportional to 272,615,885.70, 408,923,828.55 and 163,776,768.90

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Solution

The fourth proportional to 272,615,885.70, 408,923,828.55 and 163,776,768.90 is: 245,665,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,615,885.70 : 408,923,828.55 = 163,776,768.90 : x
  2. Step 2: Convert to fraction form
    272,615,885.70/408,923,828.55 = 163,776,768.90/x
  3. Step 3: Cross multiply
    272,615,885.70x = 408,923,828.55 × 163,776,768.90
  4. Step 4: Simplify right side
    272,615,885.70x = 66,972,223,366,136,576
  5. Step 5: Solve for x
    x = 66,972,223,366,136,576/272,615,885.70
  6. Step 6: Final answer
    x = 245,665,153.35

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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.