Home / 154,440,372.90-213,131,877.03-90,865,150.01

Finding the Fourth Proportional to 154,440,372.90, 213,131,877.03 and 90,865,150.01

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Solution

The fourth proportional to 154,440,372.90, 213,131,877.03 and 90,865,150.01 is: 125,396,355.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,440,372.90 : 213,131,877.03 = 90,865,150.01 : x
  2. Step 2: Convert to fraction form
    154,440,372.90/213,131,877.03 = 90,865,150.01/x
  3. Step 3: Cross multiply
    154,440,372.90x = 213,131,877.03 × 90,865,150.01
  4. Step 4: Simplify right side
    154,440,372.90x = 19,366,259,977,178,164
  5. Step 5: Solve for x
    x = 19,366,259,977,178,164/154,440,372.90
  6. Step 6: Final answer
    x = 125,396,355.98

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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.