Home / 15,504,279-21,395,905.04-8,630,384.92

Finding the Fourth Proportional to 15,504,279, 21,395,905.04 and 8,630,384.92

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Solution

The fourth proportional to 15,504,279, 21,395,905.04 and 8,630,384.92 is: 11,909,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,504,279 : 21,395,905.04 = 8,630,384.92 : x
  2. Step 2: Convert to fraction form
    15,504,279/21,395,905.04 = 8,630,384.92/x
  3. Step 3: Cross multiply
    15,504,279x = 21,395,905.04 × 8,630,384.92
  4. Step 4: Simplify right side
    15,504,279x = 184,654,896,206,968
  5. Step 5: Solve for x
    x = 184,654,896,206,968/15,504,279
  6. Step 6: Final answer
    x = 11,909,931.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.