Home / 56,685,644.38-78,225,997.40-31,905,816.87

Finding the Fourth Proportional to 56,685,644.38, 78,225,997.40 and 31,905,816.87

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Solution

The fourth proportional to 56,685,644.38, 78,225,997.40 and 31,905,816.87 is: 44,029,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,685,644.38 : 78,225,997.40 = 31,905,816.87 : x
  2. Step 2: Convert to fraction form
    56,685,644.38/78,225,997.40 = 31,905,816.87/x
  3. Step 3: Cross multiply
    56,685,644.38x = 78,225,997.40 × 31,905,816.87
  4. Step 4: Simplify right side
    56,685,644.38x = 2,495,864,347,510,410.50
  5. Step 5: Solve for x
    x = 2,495,864,347,510,410.50/56,685,644.38
  6. Step 6: Final answer
    x = 44,029,919.30

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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.