Home / 397,215,220.52-595,845,241.80-120,875,440.72

Finding the Fourth Proportional to 397,215,220.52, 595,845,241.80 and 120,875,440.72

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Solution

The fourth proportional to 397,215,220.52, 595,845,241.80 and 120,875,440.72 is: 181,319,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,215,220.52 : 595,845,241.80 = 120,875,440.72 : x
  2. Step 2: Convert to fraction form
    397,215,220.52/595,845,241.80 = 120,875,440.72/x
  3. Step 3: Cross multiply
    397,215,220.52x = 595,845,241.80 × 120,875,440.72
  4. Step 4: Simplify right side
    397,215,220.52x = 72,023,056,203,489,960
  5. Step 5: Solve for x
    x = 72,023,056,203,489,960/397,215,220.52
  6. Step 6: Final answer
    x = 181,319,980.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.