Home / 15,210,138.50-20,989,991.14-8,771,610.50

Finding the Fourth Proportional to 15,210,138.50, 20,989,991.14 and 8,771,610.50

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Solution

The fourth proportional to 15,210,138.50, 20,989,991.14 and 8,771,610.50 is: 12,104,822.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,210,138.50 : 20,989,991.14 = 8,771,610.50 : x
  2. Step 2: Convert to fraction form
    15,210,138.50/20,989,991.14 = 8,771,610.50/x
  3. Step 3: Cross multiply
    15,210,138.50x = 20,989,991.14 × 8,771,610.50
  4. Step 4: Simplify right side
    15,210,138.50x = 184,116,026,678,530.97
  5. Step 5: Solve for x
    x = 184,116,026,678,530.97/15,210,138.50
  6. Step 6: Final answer
    x = 12,104,822.50

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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.