Home / 291,076,648.56-401,683,695.30-158,917,640.76

Finding the Fourth Proportional to 291,076,648.56, 401,683,695.30 and 158,917,640.76

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Solution

The fourth proportional to 291,076,648.56, 401,683,695.30 and 158,917,640.76 is: 219,305,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,076,648.56 : 401,683,695.30 = 158,917,640.76 : x
  2. Step 2: Convert to fraction form
    291,076,648.56/401,683,695.30 = 158,917,640.76/x
  3. Step 3: Cross multiply
    291,076,648.56x = 401,683,695.30 × 158,917,640.76
  4. Step 4: Simplify right side
    291,076,648.56x = 63,834,625,188,834,696
  5. Step 5: Solve for x
    x = 63,834,625,188,834,696/291,076,648.56
  6. Step 6: Final answer
    x = 219,305,208.80

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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.