Home / 91,228,973.31-125,894,980.94-49,411,998.36

Finding the Fourth Proportional to 91,228,973.31, 125,894,980.94 and 49,411,998.36

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Solution

The fourth proportional to 91,228,973.31, 125,894,980.94 and 49,411,998.36 is: 68,188,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,228,973.31 : 125,894,980.94 = 49,411,998.36 : x
  2. Step 2: Convert to fraction form
    91,228,973.31/125,894,980.94 = 49,411,998.36/x
  3. Step 3: Cross multiply
    91,228,973.31x = 125,894,980.94 × 49,411,998.36
  4. Step 4: Simplify right side
    91,228,973.31x = 6,220,722,591,492,451
  5. Step 5: Solve for x
    x = 6,220,722,591,492,451/91,228,973.31
  6. Step 6: Final answer
    x = 68,188,014.90

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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.