Home / 7,121,035.15-10,681,552.86-1,729,649.25

Finding the Fourth Proportional to 7,121,035.15, 10,681,552.86 and 1,729,649.25

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Solution

The fourth proportional to 7,121,035.15, 10,681,552.86 and 1,729,649.25 is: 2,594,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,035.15 : 10,681,552.86 = 1,729,649.25 : x
  2. Step 2: Convert to fraction form
    7,121,035.15/10,681,552.86 = 1,729,649.25/x
  3. Step 3: Cross multiply
    7,121,035.15x = 10,681,552.86 × 1,729,649.25
  4. Step 4: Simplify right side
    7,121,035.15x = 18,475,339,893,134.36
  5. Step 5: Solve for x
    x = 18,475,339,893,134.36/7,121,035.15
  6. Step 6: Final answer
    x = 2,594,473.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.