Home / 40,175,447.72-55,439,763.54-21,840,572.84

Finding the Fourth Proportional to 40,175,447.72, 55,439,763.54 and 21,840,572.84

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Solution

The fourth proportional to 40,175,447.72, 55,439,763.54 and 21,840,572.84 is: 30,138,710.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,175,447.72 : 55,439,763.54 = 21,840,572.84 : x
  2. Step 2: Convert to fraction form
    40,175,447.72/55,439,763.54 = 21,840,572.84/x
  3. Step 3: Cross multiply
    40,175,447.72x = 55,439,763.54 × 21,840,572.84
  4. Step 4: Simplify right side
    40,175,447.72x = 1,210,836,193,827,746.25
  5. Step 5: Solve for x
    x = 1,210,836,193,827,746.25/40,175,447.72
  6. Step 6: Final answer
    x = 30,138,710.64

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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.