Home / 348,431,749.77-480,845,726.72-189,672,111.28

Finding the Fourth Proportional to 348,431,749.77, 480,845,726.72 and 189,672,111.28

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Solution

The fourth proportional to 348,431,749.77, 480,845,726.72 and 189,672,111.28 is: 261,752,909.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,431,749.77 : 480,845,726.72 = 189,672,111.28 : x
  2. Step 2: Convert to fraction form
    348,431,749.77/480,845,726.72 = 189,672,111.28/x
  3. Step 3: Cross multiply
    348,431,749.77x = 480,845,726.72 × 189,672,111.28
  4. Step 4: Simplify right side
    348,431,749.77x = 91,203,024,186,948,320
  5. Step 5: Solve for x
    x = 91,203,024,186,948,320/348,431,749.77
  6. Step 6: Final answer
    x = 261,752,909.28

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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.