Home / 21,014,374.93-31,566,366.60-19,785,749.79

Finding the Fourth Proportional to 21,014,374.93, 31,566,366.60 and 19,785,749.79

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Solution

The fourth proportional to 21,014,374.93, 31,566,366.60 and 19,785,749.79 is: 29,720,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014,374.93 : 31,566,366.60 = 19,785,749.79 : x
  2. Step 2: Convert to fraction form
    21,014,374.93/31,566,366.60 = 19,785,749.79/x
  3. Step 3: Cross multiply
    21,014,374.93x = 31,566,366.60 × 19,785,749.79
  4. Step 4: Simplify right side
    21,014,374.93x = 624,564,231,169,181.25
  5. Step 5: Solve for x
    x = 624,564,231,169,181.25/21,014,374.93
  6. Step 6: Final answer
    x = 29,720,809.36

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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.