Home / 729,112,679.51-1,006,181,771.38-415,862,753.67

Finding the Fourth Proportional to 729,112,679.51, 1,006,181,771.38 and 415,862,753.67

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Solution

The fourth proportional to 729,112,679.51, 1,006,181,771.38 and 415,862,753.67 is: 573,894,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,112,679.51 : 1,006,181,771.38 = 415,862,753.67 : x
  2. Step 2: Convert to fraction form
    729,112,679.51/1,006,181,771.38 = 415,862,753.67/x
  3. Step 3: Cross multiply
    729,112,679.51x = 1,006,181,771.38 × 415,862,753.67
  4. Step 4: Simplify right side
    729,112,679.51x = 418,433,522,137,605,568
  5. Step 5: Solve for x
    x = 418,433,522,137,605,568/729,112,679.51
  6. Step 6: Final answer
    x = 573,894,178.36

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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.