Home / 160,357,101.78-221,292,800.46-87,018,243.78

Finding the Fourth Proportional to 160,357,101.78, 221,292,800.46 and 87,018,243.78

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Solution

The fourth proportional to 160,357,101.78, 221,292,800.46 and 87,018,243.78 is: 120,085,176.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,357,101.78 : 221,292,800.46 = 87,018,243.78 : x
  2. Step 2: Convert to fraction form
    160,357,101.78/221,292,800.46 = 87,018,243.78/x
  3. Step 3: Cross multiply
    160,357,101.78x = 221,292,800.46 × 87,018,243.78
  4. Step 4: Simplify right side
    160,357,101.78x = 19,256,510,857,187,176
  5. Step 5: Solve for x
    x = 19,256,510,857,187,176/160,357,101.78
  6. Step 6: Final answer
    x = 120,085,176.42

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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.