Home / 72,362,139.60-108,510,031.80-31,951,822.80

Finding the Fourth Proportional to 72,362,139.60, 108,510,031.80 and 31,951,822.80

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Solution

The fourth proportional to 72,362,139.60, 108,510,031.80 and 31,951,822.80 is: 47,913,084.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,362,139.60 : 108,510,031.80 = 31,951,822.80 : x
  2. Step 2: Convert to fraction form
    72,362,139.60/108,510,031.80 = 31,951,822.80/x
  3. Step 3: Cross multiply
    72,362,139.60x = 108,510,031.80 × 31,951,822.80
  4. Step 4: Simplify right side
    72,362,139.60x = 3,467,093,308,095,965
  5. Step 5: Solve for x
    x = 3,467,093,308,095,965/72,362,139.60
  6. Step 6: Final answer
    x = 47,913,084.48

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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.