Home / 647,227,146.77-971,531,583.74-278,943,850.61

Finding the Fourth Proportional to 647,227,146.77, 971,531,583.74 and 278,943,850.61

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Solution

The fourth proportional to 647,227,146.77, 971,531,583.74 and 278,943,850.61 is: 418,713,526.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,227,146.77 : 971,531,583.74 = 278,943,850.61 : x
  2. Step 2: Convert to fraction form
    647,227,146.77/971,531,583.74 = 278,943,850.61/x
  3. Step 3: Cross multiply
    647,227,146.77x = 971,531,583.74 × 278,943,850.61
  4. Step 4: Simplify right side
    647,227,146.77x = 271,002,760,956,272,576
  5. Step 5: Solve for x
    x = 271,002,760,956,272,576/647,227,146.77
  6. Step 6: Final answer
    x = 418,713,526.32

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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.