Home / 811,839,642,615.42-1,120,434,752,168-482,243,982,986.86

Finding the Fourth Proportional to 811,839,642,615.42, 1,120,434,752,168 and 482,243,982,986.86

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Solution

The fourth proportional to 811,839,642,615.42, 1,120,434,752,168 and 482,243,982,986.86 is: 665,553,748,794.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,839,642,615.42 : 1,120,434,752,168 = 482,243,982,986.86 : x
  2. Step 2: Convert to fraction form
    811,839,642,615.42/1,120,434,752,168 = 482,243,982,986.86/x
  3. Step 3: Cross multiply
    811,839,642,615.42x = 1,120,434,752,168 × 482,243,982,986.86
  4. Step 4: Simplify right side
    811,839,642,615.42x = 540,322,917,562,391,669,506,048
  5. Step 5: Solve for x
    x = 540,322,917,562,391,669,506,048/811,839,642,615.42
  6. Step 6: Final answer
    x = 665,553,748,794.15

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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.