Home / 622,022,486.71-858,385,228.75-339,764,819.50

Finding the Fourth Proportional to 622,022,486.71, 858,385,228.75 and 339,764,819.50

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Solution

The fourth proportional to 622,022,486.71, 858,385,228.75 and 339,764,819.50 is: 468,872,281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,022,486.71 : 858,385,228.75 = 339,764,819.50 : x
  2. Step 2: Convert to fraction form
    622,022,486.71/858,385,228.75 = 339,764,819.50/x
  3. Step 3: Cross multiply
    622,022,486.71x = 858,385,228.75 × 339,764,819.50
  4. Step 4: Simplify right side
    622,022,486.71x = 291,649,102,309,849,792
  5. Step 5: Solve for x
    x = 291,649,102,309,849,792/622,022,486.71
  6. Step 6: Final answer
    x = 468,872,281.21

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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.