Home / 677,942,790.10-1,016,914,185.15-637,128,121.30

Finding the Fourth Proportional to 677,942,790.10, 1,016,914,185.15 and 637,128,121.30

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Solution

The fourth proportional to 677,942,790.10, 1,016,914,185.15 and 637,128,121.30 is: 955,692,181.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,942,790.10 : 1,016,914,185.15 = 637,128,121.30 : x
  2. Step 2: Convert to fraction form
    677,942,790.10/1,016,914,185.15 = 637,128,121.30/x
  3. Step 3: Cross multiply
    677,942,790.10x = 1,016,914,185.15 × 637,128,121.30
  4. Step 4: Simplify right side
    677,942,790.10x = 647,904,624,307,939,840
  5. Step 5: Solve for x
    x = 647,904,624,307,939,840/677,942,790.10
  6. Step 6: Final answer
    x = 955,692,181.95

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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.