Home / 18,885,939.60-28,349,904.60-11,705,581.20

Finding the Fourth Proportional to 18,885,939.60, 28,349,904.60 and 11,705,581.20

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Solution

The fourth proportional to 18,885,939.60, 28,349,904.60 and 11,705,581.20 is: 17,571,384.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885,939.60 : 28,349,904.60 = 11,705,581.20 : x
  2. Step 2: Convert to fraction form
    18,885,939.60/28,349,904.60 = 11,705,581.20/x
  3. Step 3: Cross multiply
    18,885,939.60x = 28,349,904.60 × 11,705,581.20
  4. Step 4: Simplify right side
    18,885,939.60x = 331,852,110,307,553.50
  5. Step 5: Solve for x
    x = 331,852,110,307,553.50/18,885,939.60
  6. Step 6: Final answer
    x = 17,571,384.71

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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.