Home / 541,668,815.42-812,247,088.82-209,831,242.38

Finding the Fourth Proportional to 541,668,815.42, 812,247,088.82 and 209,831,242.38

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Solution

The fourth proportional to 541,668,815.42, 812,247,088.82 and 209,831,242.38 is: 314,647,642.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,668,815.42 : 812,247,088.82 = 209,831,242.38 : x
  2. Step 2: Convert to fraction form
    541,668,815.42/812,247,088.82 = 209,831,242.38/x
  3. Step 3: Cross multiply
    541,668,815.42x = 812,247,088.82 × 209,831,242.38
  4. Step 4: Simplify right side
    541,668,815.42x = 170,434,815,766,638,816
  5. Step 5: Solve for x
    x = 170,434,815,766,638,816/541,668,815.42
  6. Step 6: Final answer
    x = 314,647,642.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.