Home / 940,397,773.56-1,297,749,757.86-517,018,638.66

Finding the Fourth Proportional to 940,397,773.56, 1,297,749,757.86 and 517,018,638.66

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Solution

The fourth proportional to 940,397,773.56, 1,297,749,757.86 and 517,018,638.66 is: 713,486,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,397,773.56 : 1,297,749,757.86 = 517,018,638.66 : x
  2. Step 2: Convert to fraction form
    940,397,773.56/1,297,749,757.86 = 517,018,638.66/x
  3. Step 3: Cross multiply
    940,397,773.56x = 1,297,749,757.86 × 517,018,638.66
  4. Step 4: Simplify right side
    940,397,773.56x = 670,960,813,130,121,856
  5. Step 5: Solve for x
    x = 670,960,813,130,121,856/940,397,773.56
  6. Step 6: Final answer
    x = 713,486,177.87

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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.