Home / 876,785,628.42-1,209,954,527.97-474,889,379.43

Finding the Fourth Proportional to 876,785,628.42, 1,209,954,527.97 and 474,889,379.43

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Solution

The fourth proportional to 876,785,628.42, 1,209,954,527.97 and 474,889,379.43 is: 655,342,122.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,785,628.42 : 1,209,954,527.97 = 474,889,379.43 : x
  2. Step 2: Convert to fraction form
    876,785,628.42/1,209,954,527.97 = 474,889,379.43/x
  3. Step 3: Cross multiply
    876,785,628.42x = 1,209,954,527.97 × 474,889,379.43
  4. Step 4: Simplify right side
    876,785,628.42x = 574,594,554,926,191,872
  5. Step 5: Solve for x
    x = 574,594,554,926,191,872/876,785,628.42
  6. Step 6: Final answer
    x = 655,342,122.75

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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.