Home / 189,567,657.78-261,603,722.25-105,935,788.53

Finding the Fourth Proportional to 189,567,657.78, 261,603,722.25 and 105,935,788.53

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Solution

The fourth proportional to 189,567,657.78, 261,603,722.25 and 105,935,788.53 is: 146,191,586.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,567,657.78 : 261,603,722.25 = 105,935,788.53 : x
  2. Step 2: Convert to fraction form
    189,567,657.78/261,603,722.25 = 105,935,788.53/x
  3. Step 3: Cross multiply
    189,567,657.78x = 261,603,722.25 × 105,935,788.53
  4. Step 4: Simplify right side
    189,567,657.78x = 27,713,196,598,936,856
  5. Step 5: Solve for x
    x = 27,713,196,598,936,856/189,567,657.78
  6. Step 6: Final answer
    x = 146,191,586.28

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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.