Home / 725,121,664.87-1,000,668,041.53-395,096,803.87

Finding the Fourth Proportional to 725,121,664.87, 1,000,668,041.53 and 395,096,803.87

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Solution

The fourth proportional to 725,121,664.87, 1,000,668,041.53 and 395,096,803.87 is: 545,233,667.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,121,664.87 : 1,000,668,041.53 = 395,096,803.87 : x
  2. Step 2: Convert to fraction form
    725,121,664.87/1,000,668,041.53 = 395,096,803.87/x
  3. Step 3: Cross multiply
    725,121,664.87x = 1,000,668,041.53 × 395,096,803.87
  4. Step 4: Simplify right side
    725,121,664.87x = 395,360,744,945,857,088
  5. Step 5: Solve for x
    x = 395,360,744,945,857,088/725,121,664.87
  6. Step 6: Final answer
    x = 545,233,667.81

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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.