Home / 10,783,909.09-16,183,897.60-7,912,695.31

Finding the Fourth Proportional to 10,783,909.09, 16,183,897.60 and 7,912,695.31

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Solution

The fourth proportional to 10,783,909.09, 16,183,897.60 and 7,912,695.31 is: 11,874,937.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,783,909.09 : 16,183,897.60 = 7,912,695.31 : x
  2. Step 2: Convert to fraction form
    10,783,909.09/16,183,897.60 = 7,912,695.31/x
  3. Step 3: Cross multiply
    10,783,909.09x = 16,183,897.60 × 7,912,695.31
  4. Step 4: Simplify right side
    10,783,909.09x = 128,058,250,637,040.25
  5. Step 5: Solve for x
    x = 128,058,250,637,040.25/10,783,909.09
  6. Step 6: Final answer
    x = 11,874,937.89

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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.