Home / 156,586,872.75-216,065,863.10-90,494,608.16

Finding the Fourth Proportional to 156,586,872.75, 216,065,863.10 and 90,494,608.16

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Solution

The fourth proportional to 156,586,872.75, 216,065,863.10 and 90,494,608.16 is: 124,868,676.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,586,872.75 : 216,065,863.10 = 90,494,608.16 : x
  2. Step 2: Convert to fraction form
    156,586,872.75/216,065,863.10 = 90,494,608.16/x
  3. Step 3: Cross multiply
    156,586,872.75x = 216,065,863.10 × 90,494,608.16
  4. Step 4: Simplify right side
    156,586,872.75x = 19,552,795,616,453,900
  5. Step 5: Solve for x
    x = 19,552,795,616,453,900/156,586,872.75
  6. Step 6: Final answer
    x = 124,868,676.88

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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.