Home / 112,211,997.40-168,276,005.70-39,400,643.80

Finding the Fourth Proportional to 112,211,997.40, 168,276,005.70 and 39,400,643.80

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Solution

The fourth proportional to 112,211,997.40, 168,276,005.70 and 39,400,643.80 is: 59,086,221.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,211,997.40 : 168,276,005.70 = 39,400,643.80 : x
  2. Step 2: Convert to fraction form
    112,211,997.40/168,276,005.70 = 39,400,643.80/x
  3. Step 3: Cross multiply
    112,211,997.40x = 168,276,005.70 × 39,400,643.80
  4. Step 4: Simplify right side
    112,211,997.40x = 6,630,182,960,672,469
  5. Step 5: Solve for x
    x = 6,630,182,960,672,469/112,211,997.40
  6. Step 6: Final answer
    x = 59,086,221.74

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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.