Home / 128,523,576.37-192,791,564.70-42,260,073.25

Finding the Fourth Proportional to 128,523,576.37, 192,791,564.70 and 42,260,073.25

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Solution

The fourth proportional to 128,523,576.37, 192,791,564.70 and 42,260,073.25 is: 63,392,148.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,523,576.37 : 192,791,564.70 = 42,260,073.25 : x
  2. Step 2: Convert to fraction form
    128,523,576.37/192,791,564.70 = 42,260,073.25/x
  3. Step 3: Cross multiply
    128,523,576.37x = 192,791,564.70 × 42,260,073.25
  4. Step 4: Simplify right side
    128,523,576.37x = 8,147,385,645,028,855
  5. Step 5: Solve for x
    x = 8,147,385,645,028,855/128,523,576.37
  6. Step 6: Final answer
    x = 63,392,148.55

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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.