Home / 61,405,396.40-91,856,152.20-55,358,778.80

Finding the Fourth Proportional to 61,405,396.40, 91,856,152.20 and 55,358,778.80

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Solution

The fourth proportional to 61,405,396.40, 91,856,152.20 and 55,358,778.80 is: 82,811,034.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,405,396.40 : 91,856,152.20 = 55,358,778.80 : x
  2. Step 2: Convert to fraction form
    61,405,396.40/91,856,152.20 = 55,358,778.80/x
  3. Step 3: Cross multiply
    61,405,396.40x = 91,856,152.20 × 55,358,778.80
  4. Step 4: Simplify right side
    61,405,396.40x = 5,085,044,411,058,933
  5. Step 5: Solve for x
    x = 5,085,044,411,058,933/61,405,396.40
  6. Step 6: Final answer
    x = 82,811,034.68

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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.