Home / 7,171,421.58-9,896,273.10-3,908,166.30

Finding the Fourth Proportional to 7,171,421.58, 9,896,273.10 and 3,908,166.30

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Solution

The fourth proportional to 7,171,421.58, 9,896,273.10 and 3,908,166.30 is: 5,393,112.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171,421.58 : 9,896,273.10 = 3,908,166.30 : x
  2. Step 2: Convert to fraction form
    7,171,421.58/9,896,273.10 = 3,908,166.30/x
  3. Step 3: Cross multiply
    7,171,421.58x = 9,896,273.10 × 3,908,166.30
  4. Step 4: Simplify right side
    7,171,421.58x = 38,676,281,025,016.52
  5. Step 5: Solve for x
    x = 38,676,281,025,016.52/7,171,421.58
  6. Step 6: Final answer
    x = 5,393,112.17

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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.