Home / 100,662,854.96-138,912,561.78-58,278,201.54

Finding the Fourth Proportional to 100,662,854.96, 138,912,561.78 and 58,278,201.54

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Solution

The fourth proportional to 100,662,854.96, 138,912,561.78 and 58,278,201.54 is: 80,422,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,662,854.96 : 138,912,561.78 = 58,278,201.54 : x
  2. Step 2: Convert to fraction form
    100,662,854.96/138,912,561.78 = 58,278,201.54/x
  3. Step 3: Cross multiply
    100,662,854.96x = 138,912,561.78 × 58,278,201.54
  4. Step 4: Simplify right side
    100,662,854.96x = 8,095,574,271,852,541
  5. Step 5: Solve for x
    x = 8,095,574,271,852,541/100,662,854.96
  6. Step 6: Final answer
    x = 80,422,657.15

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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.