Home / 860,683,940.10-1,290,577,390.47-307,773,222.66

Finding the Fourth Proportional to 860,683,940.10, 1,290,577,390.47 and 307,773,222.66

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Solution

The fourth proportional to 860,683,940.10, 1,290,577,390.47 and 307,773,222.66 is: 461,499,447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,683,940.10 : 1,290,577,390.47 = 307,773,222.66 : x
  2. Step 2: Convert to fraction form
    860,683,940.10/1,290,577,390.47 = 307,773,222.66/x
  3. Step 3: Cross multiply
    860,683,940.10x = 1,290,577,390.47 × 307,773,222.66
  4. Step 4: Simplify right side
    860,683,940.10x = 397,205,162,557,085,120
  5. Step 5: Solve for x
    x = 397,205,162,557,085,120/860,683,940.10
  6. Step 6: Final answer
    x = 461,499,447.18

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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.