Home / 7,168,619.84-9,892,579.56-3,905,473.64

Finding the Fourth Proportional to 7,168,619.84, 9,892,579.56 and 3,905,473.64

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Solution

The fourth proportional to 7,168,619.84, 9,892,579.56 and 3,905,473.64 is: 5,389,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168,619.84 : 9,892,579.56 = 3,905,473.64 : x
  2. Step 2: Convert to fraction form
    7,168,619.84/9,892,579.56 = 3,905,473.64/x
  3. Step 3: Cross multiply
    7,168,619.84x = 9,892,579.56 × 3,905,473.64
  4. Step 4: Simplify right side
    7,168,619.84x = 38,635,208,703,182.80
  5. Step 5: Solve for x
    x = 38,635,208,703,182.80/7,168,619.84
  6. Step 6: Final answer
    x = 5,389,490.52

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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.