Home / 541,668,809.91-812,247,080.56-209,831,236.87

Finding the Fourth Proportional to 541,668,809.91, 812,247,080.56 and 209,831,236.87

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Solution

The fourth proportional to 541,668,809.91, 812,247,080.56 and 209,831,236.87 is: 314,647,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,668,809.91 : 812,247,080.56 = 209,831,236.87 : x
  2. Step 2: Convert to fraction form
    541,668,809.91/812,247,080.56 = 209,831,236.87/x
  3. Step 3: Cross multiply
    541,668,809.91x = 812,247,080.56 × 209,831,236.87
  4. Step 4: Simplify right side
    541,668,809.91x = 170,434,809,559,801,248
  5. Step 5: Solve for x
    x = 170,434,809,559,801,248/541,668,809.91
  6. Step 6: Final answer
    x = 314,647,634.20

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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.