Home / 120,913,516.38-166,808,107.44-76,836,915.48

Finding the Fourth Proportional to 120,913,516.38, 166,808,107.44 and 76,836,915.48

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Solution

The fourth proportional to 120,913,516.38, 166,808,107.44 and 76,836,915.48 is: 106,001,552.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,913,516.38 : 166,808,107.44 = 76,836,915.48 : x
  2. Step 2: Convert to fraction form
    120,913,516.38/166,808,107.44 = 76,836,915.48/x
  3. Step 3: Cross multiply
    120,913,516.38x = 166,808,107.44 × 76,836,915.48
  4. Step 4: Simplify right side
    120,913,516.38x = 12,817,020,452,746,040
  5. Step 5: Solve for x
    x = 12,817,020,452,746,040/120,913,516.38
  6. Step 6: Final answer
    x = 106,001,552.49

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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.