Home / 439,446,554.92-606,939,557.38-289,409,909.48

Finding the Fourth Proportional to 439,446,554.92, 606,939,557.38 and 289,409,909.48

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Solution

The fourth proportional to 439,446,554.92, 606,939,557.38 and 289,409,909.48 is: 399,717,145.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,446,554.92 : 606,939,557.38 = 289,409,909.48 : x
  2. Step 2: Convert to fraction form
    439,446,554.92/606,939,557.38 = 289,409,909.48/x
  3. Step 3: Cross multiply
    439,446,554.92x = 606,939,557.38 × 289,409,909.48
  4. Step 4: Simplify right side
    439,446,554.92x = 175,654,322,361,177,088
  5. Step 5: Solve for x
    x = 175,654,322,361,177,088/439,446,554.92
  6. Step 6: Final answer
    x = 399,717,145.11

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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.