Home / 144,922,971.70-217,309,990.20-42,673,723.30

Finding the Fourth Proportional to 144,922,971.70, 217,309,990.20 and 42,673,723.30

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Solution

The fourth proportional to 144,922,971.70, 217,309,990.20 and 42,673,723.30 is: 63,988,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,922,971.70 : 217,309,990.20 = 42,673,723.30 : x
  2. Step 2: Convert to fraction form
    144,922,971.70/217,309,990.20 = 42,673,723.30/x
  3. Step 3: Cross multiply
    144,922,971.70x = 217,309,990.20 × 42,673,723.30
  4. Step 4: Simplify right side
    144,922,971.70x = 9,273,426,392,120,510
  5. Step 5: Solve for x
    x = 9,273,426,392,120,510/144,922,971.70
  6. Step 6: Final answer
    x = 63,988,657.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.