Home / 15,352,123.69-21,177,049.34-9,919,615.69

Finding the Fourth Proportional to 15,352,123.69, 21,177,049.34 and 9,919,615.69

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Solution

The fourth proportional to 15,352,123.69, 21,177,049.34 and 9,919,615.69 is: 13,683,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,352,123.69 : 21,177,049.34 = 9,919,615.69 : x
  2. Step 2: Convert to fraction form
    15,352,123.69/21,177,049.34 = 9,919,615.69/x
  3. Step 3: Cross multiply
    15,352,123.69x = 21,177,049.34 × 9,919,615.69
  4. Step 4: Simplify right side
    15,352,123.69x = 210,068,190,745,484.84
  5. Step 5: Solve for x
    x = 210,068,190,745,484.84/15,352,123.69
  6. Step 6: Final answer
    x = 13,683,331.05

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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.