Home / 91,131,930.84-125,762,064.78-49,878,823.32

Finding the Fourth Proportional to 91,131,930.84, 125,762,064.78 and 49,878,823.32

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Solution

The fourth proportional to 91,131,930.84, 125,762,064.78 and 49,878,823.32 is: 68,832,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,131,930.84 : 125,762,064.78 = 49,878,823.32 : x
  2. Step 2: Convert to fraction form
    91,131,930.84/125,762,064.78 = 49,878,823.32/x
  3. Step 3: Cross multiply
    91,131,930.84x = 125,762,064.78 × 49,878,823.32
  4. Step 4: Simplify right side
    91,131,930.84x = 6,272,863,809,520,015
  5. Step 5: Solve for x
    x = 6,272,863,809,520,015/91,131,930.84
  6. Step 6: Final answer
    x = 68,832,776.30

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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.