Home / 12,828,750.18-17,703,679.59-7,027,740.78

Finding the Fourth Proportional to 12,828,750.18, 17,703,679.59 and 7,027,740.78

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Solution

The fourth proportional to 12,828,750.18, 17,703,679.59 and 7,027,740.78 is: 9,698,284.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828,750.18 : 17,703,679.59 = 7,027,740.78 : x
  2. Step 2: Convert to fraction form
    12,828,750.18/17,703,679.59 = 7,027,740.78/x
  3. Step 3: Cross multiply
    12,828,750.18x = 17,703,679.59 × 7,027,740.78
  4. Step 4: Simplify right side
    12,828,750.18x = 124,416,871,010,696.69
  5. Step 5: Solve for x
    x = 124,416,871,010,696.69/12,828,750.18
  6. Step 6: Final answer
    x = 9,698,284.65

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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.