Home / 40,175,445.22-55,439,760.09-21,840,570.34

Finding the Fourth Proportional to 40,175,445.22, 55,439,760.09 and 21,840,570.34

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Solution

The fourth proportional to 40,175,445.22, 55,439,760.09 and 21,840,570.34 is: 30,138,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,175,445.22 : 55,439,760.09 = 21,840,570.34 : x
  2. Step 2: Convert to fraction form
    40,175,445.22/55,439,760.09 = 21,840,570.34/x
  3. Step 3: Cross multiply
    40,175,445.22x = 55,439,760.09 × 21,840,570.34
  4. Step 4: Simplify right side
    40,175,445.22x = 1,210,835,979,878,369.75
  5. Step 5: Solve for x
    x = 1,210,835,979,878,369.75/40,175,445.22
  6. Step 6: Final answer
    x = 30,138,707.19

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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.