Home / 731,496,608.69-1,009,467,962.82-396,969,058.49

Finding the Fourth Proportional to 731,496,608.69, 1,009,467,962.82 and 396,969,058.49

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Solution

The fourth proportional to 731,496,608.69, 1,009,467,962.82 and 396,969,058.49 is: 547,818,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,496,608.69 : 1,009,467,962.82 = 396,969,058.49 : x
  2. Step 2: Convert to fraction form
    731,496,608.69/1,009,467,962.82 = 396,969,058.49/x
  3. Step 3: Cross multiply
    731,496,608.69x = 1,009,467,962.82 × 396,969,058.49
  4. Step 4: Simplify right side
    731,496,608.69x = 400,727,546,771,426,432
  5. Step 5: Solve for x
    x = 400,727,546,771,426,432/731,496,608.69
  6. Step 6: Final answer
    x = 547,818,734.92

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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.