Home / 91,071,268.65-125,679,347.90-49,818,161.43

Finding the Fourth Proportional to 91,071,268.65, 125,679,347.90 and 49,818,161.43

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Solution

The fourth proportional to 91,071,268.65, 125,679,347.90 and 49,818,161.43 is: 68,749,608.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,071,268.65 : 125,679,347.90 = 49,818,161.43 : x
  2. Step 2: Convert to fraction form
    91,071,268.65/125,679,347.90 = 49,818,161.43/x
  3. Step 3: Cross multiply
    91,071,268.65x = 125,679,347.90 × 49,818,161.43
  4. Step 4: Simplify right side
    91,071,268.65x = 6,261,114,042,099,332
  5. Step 5: Solve for x
    x = 6,261,114,042,099,332/91,071,268.65
  6. Step 6: Final answer
    x = 68,749,608.25

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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.