Home / 9,258,772.11-12,777,207.69-5,128,866.51

Finding the Fourth Proportional to 9,258,772.11, 12,777,207.69 and 5,128,866.51

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Solution

The fourth proportional to 9,258,772.11, 12,777,207.69 and 5,128,866.51 is: 7,077,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,258,772.11 : 12,777,207.69 = 5,128,866.51 : x
  2. Step 2: Convert to fraction form
    9,258,772.11/12,777,207.69 = 5,128,866.51/x
  3. Step 3: Cross multiply
    9,258,772.11x = 12,777,207.69 × 5,128,866.51
  4. Step 4: Simplify right side
    9,258,772.11x = 65,532,592,612,555.45
  5. Step 5: Solve for x
    x = 65,532,592,612,555.45/9,258,772.11
  6. Step 6: Final answer
    x = 7,077,892.39

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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.