Home / 1,167,799,791.88-1,611,390,351.27-709,270,728.78

Finding the Fourth Proportional to 1,167,799,791.88, 1,611,390,351.27 and 709,270,728.78

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Solution

The fourth proportional to 1,167,799,791.88, 1,611,390,351.27 and 709,270,728.78 is: 978,688,313.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,799,791.88 : 1,611,390,351.27 = 709,270,728.78 : x
  2. Step 2: Convert to fraction form
    1,167,799,791.88/1,611,390,351.27 = 709,270,728.78/x
  3. Step 3: Cross multiply
    1,167,799,791.88x = 1,611,390,351.27 × 709,270,728.78
  4. Step 4: Simplify right side
    1,167,799,791.88x = 1,142,912,008,802,984,064
  5. Step 5: Solve for x
    x = 1,142,912,008,802,984,064/1,167,799,791.88
  6. Step 6: Final answer
    x = 978,688,313.48

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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.