Home / 665,126,464.31-917,442,029.63-426,593,828.13

Finding the Fourth Proportional to 665,126,464.31, 917,442,029.63 and 426,593,828.13

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Solution

The fourth proportional to 665,126,464.31, 917,442,029.63 and 426,593,828.13 is: 588,422,094.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,126,464.31 : 917,442,029.63 = 426,593,828.13 : x
  2. Step 2: Convert to fraction form
    665,126,464.31/917,442,029.63 = 426,593,828.13/x
  3. Step 3: Cross multiply
    665,126,464.31x = 917,442,029.63 × 426,593,828.13
  4. Step 4: Simplify right side
    665,126,464.31x = 391,375,107,505,085,632
  5. Step 5: Solve for x
    x = 391,375,107,505,085,632/665,126,464.31
  6. Step 6: Final answer
    x = 588,422,094.91

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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.