Home / 157,725,885.90-217,673,504.64-90,765,369.66

Finding the Fourth Proportional to 157,725,885.90, 217,673,504.64 and 90,765,369.66

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Solution

The fourth proportional to 157,725,885.90, 217,673,504.64 and 90,765,369.66 is: 125,262,990.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,725,885.90 : 217,673,504.64 = 90,765,369.66 : x
  2. Step 2: Convert to fraction form
    157,725,885.90/217,673,504.64 = 90,765,369.66/x
  3. Step 3: Cross multiply
    157,725,885.90x = 217,673,504.64 × 90,765,369.66
  4. Step 4: Simplify right side
    157,725,885.90x = 19,757,216,113,837,324
  5. Step 5: Solve for x
    x = 19,757,216,113,837,324/157,725,885.90
  6. Step 6: Final answer
    x = 125,262,990.29

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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.