Home / 877,372,680.74-1,210,904,249.81-555,530,561.87

Finding the Fourth Proportional to 877,372,680.74, 1,210,904,249.81 and 555,530,561.87

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Solution

The fourth proportional to 877,372,680.74, 1,210,904,249.81 and 555,530,561.87 is: 766,714,456.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,372,680.74 : 1,210,904,249.81 = 555,530,561.87 : x
  2. Step 2: Convert to fraction form
    877,372,680.74/1,210,904,249.81 = 555,530,561.87/x
  3. Step 3: Cross multiply
    877,372,680.74x = 1,210,904,249.81 × 555,530,561.87
  4. Step 4: Simplify right side
    877,372,680.74x = 672,694,318,258,888,064
  5. Step 5: Solve for x
    x = 672,694,318,258,888,064/877,372,680.74
  6. Step 6: Final answer
    x = 766,714,456.73

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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.