Home / 825,836,168.79-1,139,678,576.66-508,479,498.80

Finding the Fourth Proportional to 825,836,168.79, 1,139,678,576.66 and 508,479,498.80

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Solution

The fourth proportional to 825,836,168.79, 1,139,678,576.66 and 508,479,498.80 is: 701,716,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,836,168.79 : 1,139,678,576.66 = 508,479,498.80 : x
  2. Step 2: Convert to fraction form
    825,836,168.79/1,139,678,576.66 = 508,479,498.80/x
  3. Step 3: Cross multiply
    825,836,168.79x = 1,139,678,576.66 × 508,479,498.80
  4. Step 4: Simplify right side
    825,836,168.79x = 579,503,191,444,933,376
  5. Step 5: Solve for x
    x = 579,503,191,444,933,376/825,836,168.79
  6. Step 6: Final answer
    x = 701,716,894.16

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1.5x scale

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.