Home / 7,180,770.89-9,909,118.40-3,917,391.00

Finding the Fourth Proportional to 7,180,770.89, 9,909,118.40 and 3,917,391.00

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Solution

The fourth proportional to 7,180,770.89, 9,909,118.40 and 3,917,391.00 is: 5,405,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180,770.89 : 9,909,118.40 = 3,917,391.00 : x
  2. Step 2: Convert to fraction form
    7,180,770.89/9,909,118.40 = 3,917,391.00/x
  3. Step 3: Cross multiply
    7,180,770.89x = 9,909,118.40 × 3,917,391.00
  4. Step 4: Simplify right side
    7,180,770.89x = 38,817,891,237,087.04
  5. Step 5: Solve for x
    x = 38,817,891,237,087.04/7,180,770.89
  6. Step 6: Final answer
    x = 5,405,811.13

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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.