Home / 528,169,820.40-792,289,722.60-139,987,234.80

Finding the Fourth Proportional to 528,169,820.40, 792,289,722.60 and 139,987,234.80

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Solution

The fourth proportional to 528,169,820.40, 792,289,722.60 and 139,987,234.80 is: 209,990,126.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,169,820.40 : 792,289,722.60 = 139,987,234.80 : x
  2. Step 2: Convert to fraction form
    528,169,820.40/792,289,722.60 = 139,987,234.80/x
  3. Step 3: Cross multiply
    528,169,820.40x = 792,289,722.60 × 139,987,234.80
  4. Step 4: Simplify right side
    528,169,820.40x = 110,910,447,427,233,072
  5. Step 5: Solve for x
    x = 110,910,447,427,233,072/528,169,820.40
  6. Step 6: Final answer
    x = 209,990,126.55

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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.