Home / 21,278,944.60-31,922,564.10-9,148,384.60

Finding the Fourth Proportional to 21,278,944.60, 31,922,564.10 and 9,148,384.60

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Solution

The fourth proportional to 21,278,944.60, 31,922,564.10 and 9,148,384.60 is: 13,724,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278,944.60 : 31,922,564.10 = 9,148,384.60 : x
  2. Step 2: Convert to fraction form
    21,278,944.60/31,922,564.10 = 9,148,384.60/x
  3. Step 3: Cross multiply
    21,278,944.60x = 31,922,564.10 × 9,148,384.60
  4. Step 4: Simplify right side
    21,278,944.60x = 292,039,893,804,952.88
  5. Step 5: Solve for x
    x = 292,039,893,804,952.88/21,278,944.60
  6. Step 6: Final answer
    x = 13,724,359.89

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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.