Home / 106,428,000.90-159,642,001.35-105,420,231.30

Finding the Fourth Proportional to 106,428,000.90, 159,642,001.35 and 105,420,231.30

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Solution

The fourth proportional to 106,428,000.90, 159,642,001.35 and 105,420,231.30 is: 158,130,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,428,000.90 : 159,642,001.35 = 105,420,231.30 : x
  2. Step 2: Convert to fraction form
    106,428,000.90/159,642,001.35 = 105,420,231.30/x
  3. Step 3: Cross multiply
    106,428,000.90x = 159,642,001.35 × 105,420,231.30
  4. Step 4: Simplify right side
    106,428,000.90x = 16,829,496,707,511,912
  5. Step 5: Solve for x
    x = 16,829,496,707,511,912/106,428,000.90
  6. Step 6: Final answer
    x = 158,130,346.95

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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.