Home / 21,294,411.60-31,941,617.40-18,774,987.60

Finding the Fourth Proportional to 21,294,411.60, 31,941,617.40 and 18,774,987.60

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Solution

The fourth proportional to 21,294,411.60, 31,941,617.40 and 18,774,987.60 is: 28,162,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,411.60 : 31,941,617.40 = 18,774,987.60 : x
  2. Step 2: Convert to fraction form
    21,294,411.60/31,941,617.40 = 18,774,987.60/x
  3. Step 3: Cross multiply
    21,294,411.60x = 31,941,617.40 × 18,774,987.60
  4. Step 4: Simplify right side
    21,294,411.60x = 599,703,470,608,944.25
  5. Step 5: Solve for x
    x = 599,703,470,608,944.25/21,294,411.60
  6. Step 6: Final answer
    x = 28,162,481.40

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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.