Home / 131,065,809.86-180,874,652.21-71,530,924.49

Finding the Fourth Proportional to 131,065,809.86, 180,874,652.21 and 71,530,924.49

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Solution

The fourth proportional to 131,065,809.86, 180,874,652.21 and 71,530,924.49 is: 98,714,768.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,065,809.86 : 180,874,652.21 = 71,530,924.49 : x
  2. Step 2: Convert to fraction form
    131,065,809.86/180,874,652.21 = 71,530,924.49/x
  3. Step 3: Cross multiply
    131,065,809.86x = 180,874,652.21 × 71,530,924.49
  4. Step 4: Simplify right side
    131,065,809.86x = 12,938,131,089,475,018
  5. Step 5: Solve for x
    x = 12,938,131,089,475,018/131,065,809.86
  6. Step 6: Final answer
    x = 98,714,768.58

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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.