Home / 90,692,477.70-135,749,376.45-71,560,601.70

Finding the Fourth Proportional to 90,692,477.70, 135,749,376.45 and 71,560,601.70

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Solution

The fourth proportional to 90,692,477.70, 135,749,376.45 and 71,560,601.70 is: 107,112,599.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,692,477.70 : 135,749,376.45 = 71,560,601.70 : x
  2. Step 2: Convert to fraction form
    90,692,477.70/135,749,376.45 = 71,560,601.70/x
  3. Step 3: Cross multiply
    90,692,477.70x = 135,749,376.45 × 71,560,601.70
  4. Step 4: Simplify right side
    90,692,477.70x = 9,714,307,059,161,810
  5. Step 5: Solve for x
    x = 9,714,307,059,161,810/90,692,477.70
  6. Step 6: Final answer
    x = 107,112,599.69

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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.