Home / 9,258,770.90-12,777,206.04-5,128,865.31

Finding the Fourth Proportional to 9,258,770.90, 12,777,206.04 and 5,128,865.31

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Solution

The fourth proportional to 9,258,770.90, 12,777,206.04 and 5,128,865.31 is: 7,077,890.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,258,770.90 : 12,777,206.04 = 5,128,865.31 : x
  2. Step 2: Convert to fraction form
    9,258,770.90/12,777,206.04 = 5,128,865.31/x
  3. Step 3: Cross multiply
    9,258,770.90x = 12,777,206.04 × 5,128,865.31
  4. Step 4: Simplify right side
    9,258,770.90x = 65,532,568,817,278.46
  5. Step 5: Solve for x
    x = 65,532,568,817,278.46/9,258,770.90
  6. Step 6: Final answer
    x = 7,077,890.74

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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.