Home / 10,783,895.72-16,183,877.39-7,912,681.97

Finding the Fourth Proportional to 10,783,895.72, 16,183,877.39 and 7,912,681.97

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Solution

The fourth proportional to 10,783,895.72, 16,183,877.39 and 7,912,681.97 is: 11,874,917.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,783,895.72 : 16,183,877.39 = 7,912,681.97 : x
  2. Step 2: Convert to fraction form
    10,783,895.72/16,183,877.39 = 7,912,681.97/x
  3. Step 3: Cross multiply
    10,783,895.72x = 16,183,877.39 × 7,912,681.97
  4. Step 4: Simplify right side
    10,783,895.72x = 128,057,874,828,543.66
  5. Step 5: Solve for x
    x = 128,057,874,828,543.66/10,783,895.72
  6. Step 6: Final answer
    x = 11,874,917.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.