Home / 885,196,989.18-1,221,573,565.26-488,720,745.54

Finding the Fourth Proportional to 885,196,989.18, 1,221,573,565.26 and 488,720,745.54

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Solution

The fourth proportional to 885,196,989.18, 1,221,573,565.26 and 488,720,745.54 is: 674,435,578.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,196,989.18 : 1,221,573,565.26 = 488,720,745.54 : x
  2. Step 2: Convert to fraction form
    885,196,989.18/1,221,573,565.26 = 488,720,745.54/x
  3. Step 3: Cross multiply
    885,196,989.18x = 1,221,573,565.26 × 488,720,745.54
  4. Step 4: Simplify right side
    885,196,989.18x = 597,008,343,545,823,104
  5. Step 5: Solve for x
    x = 597,008,343,545,823,104/885,196,989.18
  6. Step 6: Final answer
    x = 674,435,578.57

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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.