Home / 439,446,506.11-606,939,490.13-289,409,860.64

Finding the Fourth Proportional to 439,446,506.11, 606,939,490.13 and 289,409,860.64

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Solution

The fourth proportional to 439,446,506.11, 606,939,490.13 and 289,409,860.64 is: 399,717,077.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,446,506.11 : 606,939,490.13 = 289,409,860.64 : x
  2. Step 2: Convert to fraction form
    439,446,506.11/606,939,490.13 = 289,409,860.64/x
  3. Step 3: Cross multiply
    439,446,506.11x = 606,939,490.13 × 289,409,860.64
  4. Step 4: Simplify right side
    439,446,506.11x = 175,654,273,255,506,240
  5. Step 5: Solve for x
    x = 175,654,273,255,506,240/439,446,506.11
  6. Step 6: Final answer
    x = 399,717,077.77

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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.