Home / 7,168,772.25-9,892,875.87-3,905,576.82

Finding the Fourth Proportional to 7,168,772.25, 9,892,875.87 and 3,905,576.82

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Solution

The fourth proportional to 7,168,772.25, 9,892,875.87 and 3,905,576.82 is: 5,389,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168,772.25 : 9,892,875.87 = 3,905,576.82 : x
  2. Step 2: Convert to fraction form
    7,168,772.25/9,892,875.87 = 3,905,576.82/x
  3. Step 3: Cross multiply
    7,168,772.25x = 9,892,875.87 × 3,905,576.82
  4. Step 4: Simplify right side
    7,168,772.25x = 38,637,386,681,009.33
  5. Step 5: Solve for x
    x = 38,637,386,681,009.33/7,168,772.25
  6. Step 6: Final answer
    x = 5,389,679.76

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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.