Home / 697,728,004.80-1,046,592,007.20-212,990,827.20

Finding the Fourth Proportional to 697,728,004.80, 1,046,592,007.20 and 212,990,827.20

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Solution

The fourth proportional to 697,728,004.80, 1,046,592,007.20 and 212,990,827.20 is: 319,486,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,728,004.80 : 1,046,592,007.20 = 212,990,827.20 : x
  2. Step 2: Convert to fraction form
    697,728,004.80/1,046,592,007.20 = 212,990,827.20/x
  3. Step 3: Cross multiply
    697,728,004.80x = 1,046,592,007.20 × 212,990,827.20
  4. Step 4: Simplify right side
    697,728,004.80x = 222,914,497,354,436,352
  5. Step 5: Solve for x
    x = 222,914,497,354,436,352/697,728,004.80
  6. Step 6: Final answer
    x = 319,486,240.80

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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.