Home / 1,217,950,231.43-1,827,693,850.94-518,441,225.38

Finding the Fourth Proportional to 1,217,950,231.43, 1,827,693,850.94 and 518,441,225.38

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Solution

The fourth proportional to 1,217,950,231.43, 1,827,693,850.94 and 518,441,225.38 is: 777,988,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,950,231.43 : 1,827,693,850.94 = 518,441,225.38 : x
  2. Step 2: Convert to fraction form
    1,217,950,231.43/1,827,693,850.94 = 518,441,225.38/x
  3. Step 3: Cross multiply
    1,217,950,231.43x = 1,827,693,850.94 × 518,441,225.38
  4. Step 4: Simplify right side
    1,217,950,231.43x = 947,551,839,700,824,704
  5. Step 5: Solve for x
    x = 947,551,839,700,824,704/1,217,950,231.43
  6. Step 6: Final answer
    x = 777,988,964.78

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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.