Home / 725,121,664.56-1,000,668,041.10-395,096,803.56

Finding the Fourth Proportional to 725,121,664.56, 1,000,668,041.10 and 395,096,803.56

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Solution

The fourth proportional to 725,121,664.56, 1,000,668,041.10 and 395,096,803.56 is: 545,233,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,121,664.56 : 1,000,668,041.10 = 395,096,803.56 : x
  2. Step 2: Convert to fraction form
    725,121,664.56/1,000,668,041.10 = 395,096,803.56/x
  3. Step 3: Cross multiply
    725,121,664.56x = 1,000,668,041.10 × 395,096,803.56
  4. Step 4: Simplify right side
    725,121,664.56x = 395,360,744,463,256,704
  5. Step 5: Solve for x
    x = 395,360,744,463,256,704/725,121,664.56
  6. Step 6: Final answer
    x = 545,233,667.38

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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.