Home / 21,248,600.60-31,872,900.90-6,881,978.90

Finding the Fourth Proportional to 21,248,600.60, 31,872,900.90 and 6,881,978.90

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Solution

The fourth proportional to 21,248,600.60, 31,872,900.90 and 6,881,978.90 is: 10,322,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,600.60 : 31,872,900.90 = 6,881,978.90 : x
  2. Step 2: Convert to fraction form
    21,248,600.60/31,872,900.90 = 6,881,978.90/x
  3. Step 3: Cross multiply
    21,248,600.60x = 31,872,900.90 × 6,881,978.90
  4. Step 4: Simplify right side
    21,248,600.60x = 219,348,631,475,591
  5. Step 5: Solve for x
    x = 219,348,631,475,591/21,248,600.60
  6. Step 6: Final answer
    x = 10,322,968.35

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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.