Home / 51,157,021.57-76,735,425.74-20,458,775.07

Finding the Fourth Proportional to 51,157,021.57, 76,735,425.74 and 20,458,775.07

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Solution

The fourth proportional to 51,157,021.57, 76,735,425.74 and 20,458,775.07 is: 30,688,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,157,021.57 : 76,735,425.74 = 20,458,775.07 : x
  2. Step 2: Convert to fraction form
    51,157,021.57/76,735,425.74 = 20,458,775.07/x
  3. Step 3: Cross multiply
    51,157,021.57x = 76,735,425.74 × 20,458,775.07
  4. Step 4: Simplify right side
    51,157,021.57x = 1,569,912,815,013,054.50
  5. Step 5: Solve for x
    x = 1,569,912,815,013,054.50/51,157,021.57
  6. Step 6: Final answer
    x = 30,688,119.97

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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.