Home / 725,121,636.06-1,000,668,001.78-395,096,775.06

Finding the Fourth Proportional to 725,121,636.06, 1,000,668,001.78 and 395,096,775.06

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Solution

The fourth proportional to 725,121,636.06, 1,000,668,001.78 and 395,096,775.06 is: 545,233,628.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,121,636.06 : 1,000,668,001.78 = 395,096,775.06 : x
  2. Step 2: Convert to fraction form
    725,121,636.06/1,000,668,001.78 = 395,096,775.06/x
  3. Step 3: Cross multiply
    725,121,636.06x = 1,000,668,001.78 × 395,096,775.06
  4. Step 4: Simplify right side
    725,121,636.06x = 395,360,700,409,012,352
  5. Step 5: Solve for x
    x = 395,360,700,409,012,352/725,121,636.06
  6. Step 6: Final answer
    x = 545,233,628.05

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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.