Home / 11,478,178.70-15,840,602.71-6,321,538.94

Finding the Fourth Proportional to 11,478,178.70, 15,840,602.71 and 6,321,538.94

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Solution

The fourth proportional to 11,478,178.70, 15,840,602.71 and 6,321,538.94 is: 8,724,118.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478,178.70 : 15,840,602.71 = 6,321,538.94 : x
  2. Step 2: Convert to fraction form
    11,478,178.70/15,840,602.71 = 6,321,538.94/x
  3. Step 3: Cross multiply
    11,478,178.70x = 15,840,602.71 × 6,321,538.94
  4. Step 4: Simplify right side
    11,478,178.70x = 100,136,986,864,334.55
  5. Step 5: Solve for x
    x = 100,136,986,864,334.55/11,478,178.70
  6. Step 6: Final answer
    x = 8,724,118.13

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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.