Home / 21,292,679.60-31,946,892.60-6,916,216.40

Finding the Fourth Proportional to 21,292,679.60, 31,946,892.60 and 6,916,216.40

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Solution

The fourth proportional to 21,292,679.60, 31,946,892.60 and 6,916,216.40 is: 10,376,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292,679.60 : 31,946,892.60 = 6,916,216.40 : x
  2. Step 2: Convert to fraction form
    21,292,679.60/31,946,892.60 = 6,916,216.40/x
  3. Step 3: Cross multiply
    21,292,679.60x = 31,946,892.60 × 6,916,216.40
  4. Step 4: Simplify right side
    21,292,679.60x = 220,951,622,529,158.66
  5. Step 5: Solve for x
    x = 220,951,622,529,158.66/21,292,679.60
  6. Step 6: Final answer
    x = 10,376,881.95

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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.