Home / 661,288,540.16-991,933,639.68-316,161,044.48

Finding the Fourth Proportional to 661,288,540.16, 991,933,639.68 and 316,161,044.48

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Solution

The fourth proportional to 661,288,540.16, 991,933,639.68 and 316,161,044.48 is: 474,241,963.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,288,540.16 : 991,933,639.68 = 316,161,044.48 : x
  2. Step 2: Convert to fraction form
    661,288,540.16/991,933,639.68 = 316,161,044.48/x
  3. Step 3: Cross multiply
    661,288,540.16x = 991,933,639.68 × 316,161,044.48
  4. Step 4: Simplify right side
    661,288,540.16x = 313,610,775,576,076,800
  5. Step 5: Solve for x
    x = 313,610,775,576,076,800/661,288,540.16
  6. Step 6: Final answer
    x = 474,241,963.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.