Home / 21,081,951.60-31,552,943.40-15,308,271.60

Finding the Fourth Proportional to 21,081,951.60, 31,552,943.40 and 15,308,271.60

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Solution

The fourth proportional to 21,081,951.60, 31,552,943.40 and 15,308,271.60 is: 22,911,589.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081,951.60 : 31,552,943.40 = 15,308,271.60 : x
  2. Step 2: Convert to fraction form
    21,081,951.60/31,552,943.40 = 15,308,271.60/x
  3. Step 3: Cross multiply
    21,081,951.60x = 31,552,943.40 × 15,308,271.60
  4. Step 4: Simplify right side
    21,081,951.60x = 483,021,027,346,627.38
  5. Step 5: Solve for x
    x = 483,021,027,346,627.38/21,081,951.60
  6. Step 6: Final answer
    x = 22,911,589.80

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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.