Home / 9,258,770.71-12,777,205.78-5,128,865.12

Finding the Fourth Proportional to 9,258,770.71, 12,777,205.78 and 5,128,865.12

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Solution

The fourth proportional to 9,258,770.71, 12,777,205.78 and 5,128,865.12 is: 7,077,890.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,258,770.71 : 12,777,205.78 = 5,128,865.12 : x
  2. Step 2: Convert to fraction form
    9,258,770.71/12,777,205.78 = 5,128,865.12/x
  3. Step 3: Cross multiply
    9,258,770.71x = 12,777,205.78 × 5,128,865.12
  4. Step 4: Simplify right side
    9,258,770.71x = 65,532,565,094,458.48
  5. Step 5: Solve for x
    x = 65,532,565,094,458.48/9,258,770.71
  6. Step 6: Final answer
    x = 7,077,890.48

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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.