Home / 168,005,058.52-231,847,137-90,742,722.52

Finding the Fourth Proportional to 168,005,058.52, 231,847,137 and 90,742,722.52

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Solution

The fourth proportional to 168,005,058.52, 231,847,137 and 90,742,722.52 is: 125,225,041.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,005,058.52 : 231,847,137 = 90,742,722.52 : x
  2. Step 2: Convert to fraction form
    168,005,058.52/231,847,137 = 90,742,722.52/x
  3. Step 3: Cross multiply
    168,005,058.52x = 231,847,137 × 90,742,722.52
  4. Step 4: Simplify right side
    168,005,058.52x = 21,038,440,419,847,424
  5. Step 5: Solve for x
    x = 21,038,440,419,847,424/168,005,058.52
  6. Step 6: Final answer
    x = 125,225,041.47

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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.