Home / 30,429,450.09-41,979,445.63-20,130,517.17

Finding the Fourth Proportional to 30,429,450.09, 41,979,445.63 and 20,130,517.17

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Solution

The fourth proportional to 30,429,450.09, 41,979,445.63 and 20,130,517.17 is: 27,771,384.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,429,450.09 : 41,979,445.63 = 20,130,517.17 : x
  2. Step 2: Convert to fraction form
    30,429,450.09/41,979,445.63 = 20,130,517.17/x
  3. Step 3: Cross multiply
    30,429,450.09x = 41,979,445.63 × 20,130,517.17
  4. Step 4: Simplify right side
    30,429,450.09x = 845,067,951,041,796.62
  5. Step 5: Solve for x
    x = 845,067,951,041,796.62/30,429,450.09
  6. Step 6: Final answer
    x = 27,771,384.25

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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.