Home / 9,258,770.15-12,777,205.01-5,128,864.56

Finding the Fourth Proportional to 9,258,770.15, 12,777,205.01 and 5,128,864.56

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Solution

The fourth proportional to 9,258,770.15, 12,777,205.01 and 5,128,864.56 is: 7,077,889.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,258,770.15 : 12,777,205.01 = 5,128,864.56 : x
  2. Step 2: Convert to fraction form
    9,258,770.15/12,777,205.01 = 5,128,864.56/x
  3. Step 3: Cross multiply
    9,258,770.15x = 12,777,205.01 × 5,128,864.56
  4. Step 4: Simplify right side
    9,258,770.15x = 65,532,553,925,999.12
  5. Step 5: Solve for x
    x = 65,532,553,925,999.12/9,258,770.15
  6. Step 6: Final answer
    x = 7,077,889.71

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1.5x scale

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.