Home / 20,805,782.60-31,208,673.90-19,546,070.60

Finding the Fourth Proportional to 20,805,782.60, 31,208,673.90 and 19,546,070.60

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Solution

The fourth proportional to 20,805,782.60, 31,208,673.90 and 19,546,070.60 is: 29,319,105.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,805,782.60 : 31,208,673.90 = 19,546,070.60 : x
  2. Step 2: Convert to fraction form
    20,805,782.60/31,208,673.90 = 19,546,070.60/x
  3. Step 3: Cross multiply
    20,805,782.60x = 31,208,673.90 × 19,546,070.60
  4. Step 4: Simplify right side
    20,805,782.60x = 610,006,943,381,777.38
  5. Step 5: Solve for x
    x = 610,006,943,381,777.38/20,805,782.60
  6. Step 6: Final answer
    x = 29,319,105.90

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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.