Home / 731,496,620.70-1,009,467,979.38-396,969,070.50

Finding the Fourth Proportional to 731,496,620.70, 1,009,467,979.38 and 396,969,070.50

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Solution

The fourth proportional to 731,496,620.70, 1,009,467,979.38 and 396,969,070.50 is: 547,818,751.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,496,620.70 : 1,009,467,979.38 = 396,969,070.50 : x
  2. Step 2: Convert to fraction form
    731,496,620.70/1,009,467,979.38 = 396,969,070.50/x
  3. Step 3: Cross multiply
    731,496,620.70x = 1,009,467,979.38 × 396,969,070.50
  4. Step 4: Simplify right side
    731,496,620.70x = 400,727,565,473,991,744
  5. Step 5: Solve for x
    x = 400,727,565,473,991,744/731,496,620.70
  6. Step 6: Final answer
    x = 547,818,751.49

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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.