Home / 158,023,839,023.21-218,073,113,802.42-85,765,904,982.11

Finding the Fourth Proportional to 158,023,839,023.21, 218,073,113,802.42 and 85,765,904,982.11

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Solution

The fourth proportional to 158,023,839,023.21, 218,073,113,802.42 and 85,765,904,982.11 is: 118,357,066,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,023,839,023.21 : 218,073,113,802.42 = 85,765,904,982.11 : x
  2. Step 2: Convert to fraction form
    158,023,839,023.21/218,073,113,802.42 = 85,765,904,982.11/x
  3. Step 3: Cross multiply
    158,023,839,023.21x = 218,073,113,802.42 × 85,765,904,982.11
  4. Step 4: Simplify right side
    158,023,839,023.21x = 18,703,237,957,531,216,117,760
  5. Step 5: Solve for x
    x = 18,703,237,957,531,216,117,760/158,023,839,023.21
  6. Step 6: Final answer
    x = 118,357,066,080.29

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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.