Home / 725,121,684.64-1,000,668,068.72-395,096,823.52

Finding the Fourth Proportional to 725,121,684.64, 1,000,668,068.72 and 395,096,823.52

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Solution

The fourth proportional to 725,121,684.64, 1,000,668,068.72 and 395,096,823.52 is: 545,233,694.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,121,684.64 : 1,000,668,068.72 = 395,096,823.52 : x
  2. Step 2: Convert to fraction form
    725,121,684.64/1,000,668,068.72 = 395,096,823.52/x
  3. Step 3: Cross multiply
    725,121,684.64x = 1,000,668,068.72 × 395,096,823.52
  4. Step 4: Simplify right side
    725,121,684.64x = 395,360,775,349,165,056
  5. Step 5: Solve for x
    x = 395,360,775,349,165,056/725,121,684.64
  6. Step 6: Final answer
    x = 545,233,694.87

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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.