Home / 15,579,997.29-21,499,999.43-8,704,530.81

Finding the Fourth Proportional to 15,579,997.29, 21,499,999.43 and 8,704,530.81

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Solution

The fourth proportional to 15,579,997.29, 21,499,999.43 and 8,704,530.81 is: 12,012,030.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579,997.29 : 21,499,999.43 = 8,704,530.81 : x
  2. Step 2: Convert to fraction form
    15,579,997.29/21,499,999.43 = 8,704,530.81/x
  3. Step 3: Cross multiply
    15,579,997.29x = 21,499,999.43 × 8,704,530.81
  4. Step 4: Simplify right side
    15,579,997.29x = 187,147,407,409,894.81
  5. Step 5: Solve for x
    x = 187,147,407,409,894.81/15,579,997.29
  6. Step 6: Final answer
    x = 12,012,030.81

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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.