Home / 81,169,402.12-121,774,281.90-23,662,178.80

Finding the Fourth Proportional to 81,169,402.12, 121,774,281.90 and 23,662,178.80

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Solution

The fourth proportional to 81,169,402.12, 121,774,281.90 and 23,662,178.80 is: 35,499,150.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,169,402.12 : 121,774,281.90 = 23,662,178.80 : x
  2. Step 2: Convert to fraction form
    81,169,402.12/121,774,281.90 = 23,662,178.80/x
  3. Step 3: Cross multiply
    81,169,402.12x = 121,774,281.90 × 23,662,178.80
  4. Step 4: Simplify right side
    81,169,402.12x = 2,881,444,831,166,234.50
  5. Step 5: Solve for x
    x = 2,881,444,831,166,234.50/81,169,402.12
  6. Step 6: Final answer
    x = 35,499,150.62

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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.