Home / 91,131,891.40-125,762,010.11-49,878,783.77

Finding the Fourth Proportional to 91,131,891.40, 125,762,010.11 and 49,878,783.77

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Solution

The fourth proportional to 91,131,891.40, 125,762,010.11 and 49,878,783.77 is: 68,832,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,131,891.40 : 125,762,010.11 = 49,878,783.77 : x
  2. Step 2: Convert to fraction form
    91,131,891.40/125,762,010.11 = 49,878,783.77/x
  3. Step 3: Cross multiply
    91,131,891.40x = 125,762,010.11 × 49,878,783.77
  4. Step 4: Simplify right side
    91,131,891.40x = 6,272,856,109,009,301
  5. Step 5: Solve for x
    x = 6,272,856,109,009,301/91,131,891.40
  6. Step 6: Final answer
    x = 68,832,721.60

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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.