Home / 81,657,237.60-122,485,856.40-73,343,138.40

Finding the Fourth Proportional to 81,657,237.60, 122,485,856.40 and 73,343,138.40

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Solution

The fourth proportional to 81,657,237.60, 122,485,856.40 and 73,343,138.40 is: 110,014,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,657,237.60 : 122,485,856.40 = 73,343,138.40 : x
  2. Step 2: Convert to fraction form
    81,657,237.60/122,485,856.40 = 73,343,138.40/x
  3. Step 3: Cross multiply
    81,657,237.60x = 122,485,856.40 × 73,343,138.40
  4. Step 4: Simplify right side
    81,657,237.60x = 8,983,497,117,987,727
  5. Step 5: Solve for x
    x = 8,983,497,117,987,727/81,657,237.60
  6. Step 6: Final answer
    x = 110,014,707.60

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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.