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Finding the Fourth Proportional to 514,876,671.80, 772,315,007.70 and 369,002,022.20

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Solution

The fourth proportional to 514,876,671.80, 772,315,007.70 and 369,002,022.20 is: 553,503,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,876,671.80 : 772,315,007.70 = 369,002,022.20 : x
  2. Step 2: Convert to fraction form
    514,876,671.80/772,315,007.70 = 369,002,022.20/x
  3. Step 3: Cross multiply
    514,876,671.80x = 772,315,007.70 × 369,002,022.20
  4. Step 4: Simplify right side
    514,876,671.80x = 284,985,799,616,708,576
  5. Step 5: Solve for x
    x = 284,985,799,616,708,576/514,876,671.80
  6. Step 6: Final answer
    x = 553,503,033.30

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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.