Home / 1,089,443,538-1,503,895,980.12-732,418,376.40

Finding the Fourth Proportional to 1,089,443,538, 1,503,895,980.12 and 732,418,376.40

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Solution

The fourth proportional to 1,089,443,538, 1,503,895,980.12 and 732,418,376.40 is: 1,011,049,231.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,443,538 : 1,503,895,980.12 = 732,418,376.40 : x
  2. Step 2: Convert to fraction form
    1,089,443,538/1,503,895,980.12 = 732,418,376.40/x
  3. Step 3: Cross multiply
    1,089,443,538x = 1,503,895,980.12 × 732,418,376.40
  4. Step 4: Simplify right side
    1,089,443,538x = 1,101,481,052,033,976,960
  5. Step 5: Solve for x
    x = 1,101,481,052,033,976,960/1,089,443,538
  6. Step 6: Final answer
    x = 1,011,049,231.66

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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.