Home / 74,885,997.60-112,366,321.20-42,562,720.80

Finding the Fourth Proportional to 74,885,997.60, 112,366,321.20 and 42,562,720.80

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Solution

The fourth proportional to 74,885,997.60, 112,366,321.20 and 42,562,720.80 is: 63,865,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,885,997.60 : 112,366,321.20 = 42,562,720.80 : x
  2. Step 2: Convert to fraction form
    74,885,997.60/112,366,321.20 = 42,562,720.80/x
  3. Step 3: Cross multiply
    74,885,997.60x = 112,366,321.20 × 42,562,720.80
  4. Step 4: Simplify right side
    74,885,997.60x = 4,782,616,356,558,721
  5. Step 5: Solve for x
    x = 4,782,616,356,558,721/74,885,997.60
  6. Step 6: Final answer
    x = 63,865,295.38

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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.