Home / 1,089,443,540-1,503,895,982.88-732,418,378.40

Finding the Fourth Proportional to 1,089,443,540, 1,503,895,982.88 and 732,418,378.40

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Solution

The fourth proportional to 1,089,443,540, 1,503,895,982.88 and 732,418,378.40 is: 1,011,049,234.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,443,540 : 1,503,895,982.88 = 732,418,378.40 : x
  2. Step 2: Convert to fraction form
    1,089,443,540/1,503,895,982.88 = 732,418,378.40/x
  3. Step 3: Cross multiply
    1,089,443,540x = 1,503,895,982.88 × 732,418,378.40
  4. Step 4: Simplify right side
    1,089,443,540x = 1,101,481,057,063,243,776
  5. Step 5: Solve for x
    x = 1,101,481,057,063,243,776/1,089,443,540
  6. Step 6: Final answer
    x = 1,011,049,234.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.