Home / 56,787,181.23-78,430,952.72-38,169,999.54

Finding the Fourth Proportional to 56,787,181.23, 78,430,952.72 and 38,169,999.54

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Solution

The fourth proportional to 56,787,181.23, 78,430,952.72 and 38,169,999.54 is: 52,718,049.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,787,181.23 : 78,430,952.72 = 38,169,999.54 : x
  2. Step 2: Convert to fraction form
    56,787,181.23/78,430,952.72 = 38,169,999.54/x
  3. Step 3: Cross multiply
    56,787,181.23x = 78,430,952.72 × 38,169,999.54
  4. Step 4: Simplify right side
    56,787,181.23x = 2,993,709,429,244,161.50
  5. Step 5: Solve for x
    x = 2,993,709,429,244,161.50/56,787,181.23
  6. Step 6: Final answer
    x = 52,718,049.47

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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.