Home / 522,030,048.38-720,420,408-299,054,824.23

Finding the Fourth Proportional to 522,030,048.38, 720,420,408 and 299,054,824.23

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Solution

The fourth proportional to 522,030,048.38, 720,420,408 and 299,054,824.23 is: 412,706,508.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,030,048.38 : 720,420,408 = 299,054,824.23 : x
  2. Step 2: Convert to fraction form
    522,030,048.38/720,420,408 = 299,054,824.23/x
  3. Step 3: Cross multiply
    522,030,048.38x = 720,420,408 × 299,054,824.23
  4. Step 4: Simplify right side
    522,030,048.38x = 215,445,198,486,144,896
  5. Step 5: Solve for x
    x = 215,445,198,486,144,896/522,030,048.38
  6. Step 6: Final answer
    x = 412,706,508.29

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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.