Home / 714,140,992.43-985,425,330.21-396,558,058.66

Finding the Fourth Proportional to 714,140,992.43, 985,425,330.21 and 396,558,058.66

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Solution

The fourth proportional to 714,140,992.43, 985,425,330.21 and 396,558,058.66 is: 547,200,566.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,140,992.43 : 985,425,330.21 = 396,558,058.66 : x
  2. Step 2: Convert to fraction form
    714,140,992.43/985,425,330.21 = 396,558,058.66/x
  3. Step 3: Cross multiply
    714,140,992.43x = 985,425,330.21 × 396,558,058.66
  4. Step 4: Simplify right side
    714,140,992.43x = 390,778,355,902,467,072
  5. Step 5: Solve for x
    x = 390,778,355,902,467,072/714,140,992.43
  6. Step 6: Final answer
    x = 547,200,566.90

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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.