Home / 210,854,558.20-315,945,914.10-156,434,999.80

Finding the Fourth Proportional to 210,854,558.20, 315,945,914.10 and 156,434,999.80

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Solution

The fourth proportional to 210,854,558.20, 315,945,914.10 and 156,434,999.80 is: 234,403,275.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,854,558.20 : 315,945,914.10 = 156,434,999.80 : x
  2. Step 2: Convert to fraction form
    210,854,558.20/315,945,914.10 = 156,434,999.80/x
  3. Step 3: Cross multiply
    210,854,558.20x = 315,945,914.10 × 156,434,999.80
  4. Step 4: Simplify right side
    210,854,558.20x = 49,424,999,009,044,328
  5. Step 5: Solve for x
    x = 49,424,999,009,044,328/210,854,558.20
  6. Step 6: Final answer
    x = 234,403,275.09

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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.