Home / 160,357,105.78-221,292,805.98-87,018,247.78

Finding the Fourth Proportional to 160,357,105.78, 221,292,805.98 and 87,018,247.78

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Solution

The fourth proportional to 160,357,105.78, 221,292,805.98 and 87,018,247.78 is: 120,085,181.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,357,105.78 : 221,292,805.98 = 87,018,247.78 : x
  2. Step 2: Convert to fraction form
    160,357,105.78/221,292,805.98 = 87,018,247.78/x
  3. Step 3: Cross multiply
    160,357,105.78x = 221,292,805.98 × 87,018,247.78
  4. Step 4: Simplify right side
    160,357,105.78x = 19,256,512,222,699,104
  5. Step 5: Solve for x
    x = 19,256,512,222,699,104/160,357,105.78
  6. Step 6: Final answer
    x = 120,085,181.94

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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.