Home / 665,126,464.43-917,442,029.81-426,593,828.26

Finding the Fourth Proportional to 665,126,464.43, 917,442,029.81 and 426,593,828.26

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Solution

The fourth proportional to 665,126,464.43, 917,442,029.81 and 426,593,828.26 is: 588,422,095.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,126,464.43 : 917,442,029.81 = 426,593,828.26 : x
  2. Step 2: Convert to fraction form
    665,126,464.43/917,442,029.81 = 426,593,828.26/x
  3. Step 3: Cross multiply
    665,126,464.43x = 917,442,029.81 × 426,593,828.26
  4. Step 4: Simplify right side
    665,126,464.43x = 391,375,107,703,272,896
  5. Step 5: Solve for x
    x = 391,375,107,703,272,896/665,126,464.43
  6. Step 6: Final answer
    x = 588,422,095.10

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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.