Home / 705,015,849.22-972,516,654.96-440,238,208.66

Finding the Fourth Proportional to 705,015,849.22, 972,516,654.96 and 440,238,208.66

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Solution

The fourth proportional to 705,015,849.22, 972,516,654.96 and 440,238,208.66 is: 607,275,695.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,015,849.22 : 972,516,654.96 = 440,238,208.66 : x
  2. Step 2: Convert to fraction form
    705,015,849.22/972,516,654.96 = 440,238,208.66/x
  3. Step 3: Cross multiply
    705,015,849.22x = 972,516,654.96 × 440,238,208.66
  4. Step 4: Simplify right side
    705,015,849.22x = 428,138,990,072,988,992
  5. Step 5: Solve for x
    x = 428,138,990,072,988,992/705,015,849.22
  6. Step 6: Final answer
    x = 607,275,695.35

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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.