Home / 399,216,087,370.80-551,108,170,356.12-267,455,313,733.44

Finding the Fourth Proportional to 399,216,087,370.80, 551,108,170,356.12 and 267,455,313,733.44

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Solution

The fourth proportional to 399,216,087,370.80, 551,108,170,356.12 and 267,455,313,733.44 is: 369,215,603,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,216,087,370.80 : 551,108,170,356.12 = 267,455,313,733.44 : x
  2. Step 2: Convert to fraction form
    399,216,087,370.80/551,108,170,356.12 = 267,455,313,733.44/x
  3. Step 3: Cross multiply
    399,216,087,370.80x = 551,108,170,356.12 × 267,455,313,733.44
  4. Step 4: Simplify right side
    399,216,087,370.80x = 147,396,808,603,658,172,235,776
  5. Step 5: Solve for x
    x = 147,396,808,603,658,172,235,776/399,216,087,370.80
  6. Step 6: Final answer
    x = 369,215,603,445.24

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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.