Home / 15,327,786.84-21,152,856.48-8,358,845.64

Finding the Fourth Proportional to 15,327,786.84, 21,152,856.48 and 8,358,845.64

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Solution

The fourth proportional to 15,327,786.84, 21,152,856.48 and 8,358,845.64 is: 11,535,485.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327,786.84 : 21,152,856.48 = 8,358,845.64 : x
  2. Step 2: Convert to fraction form
    15,327,786.84/21,152,856.48 = 8,358,845.64/x
  3. Step 3: Cross multiply
    15,327,786.84x = 21,152,856.48 × 8,358,845.64
  4. Step 4: Simplify right side
    15,327,786.84x = 176,813,462,161,393.75
  5. Step 5: Solve for x
    x = 176,813,462,161,393.75/15,327,786.84
  6. Step 6: Final answer
    x = 11,535,485.46

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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.