Home / 541,668,811.91-812,247,083.56-209,831,238.87

Finding the Fourth Proportional to 541,668,811.91, 812,247,083.56 and 209,831,238.87

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Solution

The fourth proportional to 541,668,811.91, 812,247,083.56 and 209,831,238.87 is: 314,647,637.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,668,811.91 : 812,247,083.56 = 209,831,238.87 : x
  2. Step 2: Convert to fraction form
    541,668,811.91/812,247,083.56 = 209,831,238.87/x
  3. Step 3: Cross multiply
    541,668,811.91x = 812,247,083.56 × 209,831,238.87
  4. Step 4: Simplify right side
    541,668,811.91x = 170,434,811,811,939,200
  5. Step 5: Solve for x
    x = 170,434,811,811,939,200/541,668,811.91
  6. Step 6: Final answer
    x = 314,647,637.20

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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.