Home / 30,951,894.42-42,639,790.37-21,642,044.20

Finding the Fourth Proportional to 30,951,894.42, 42,639,790.37 and 21,642,044.20

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Solution

The fourth proportional to 30,951,894.42, 42,639,790.37 and 21,642,044.20 is: 29,814,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,951,894.42 : 42,639,790.37 = 21,642,044.20 : x
  2. Step 2: Convert to fraction form
    30,951,894.42/42,639,790.37 = 21,642,044.20/x
  3. Step 3: Cross multiply
    30,951,894.42x = 42,639,790.37 × 21,642,044.20
  4. Step 4: Simplify right side
    30,951,894.42x = 922,812,227,651,464.75
  5. Step 5: Solve for x
    x = 922,812,227,651,464.75/30,951,894.42
  6. Step 6: Final answer
    x = 29,814,402.15

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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.