Home / 154,986,961-213,839,445.54-107,891,254.12

Finding the Fourth Proportional to 154,986,961, 213,839,445.54 and 107,891,254.12

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Solution

The fourth proportional to 154,986,961, 213,839,445.54 and 107,891,254.12 is: 148,860,302.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,986,961 : 213,839,445.54 = 107,891,254.12 : x
  2. Step 2: Convert to fraction form
    154,986,961/213,839,445.54 = 107,891,254.12/x
  3. Step 3: Cross multiply
    154,986,961x = 213,839,445.54 × 107,891,254.12
  4. Step 4: Simplify right side
    154,986,961x = 23,071,405,959,636,040
  5. Step 5: Solve for x
    x = 23,071,405,959,636,040/154,986,961
  6. Step 6: Final answer
    x = 148,860,302.90

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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.