Home / 663,551,999.80-995,327,999.70-572,778,086.20

Finding the Fourth Proportional to 663,551,999.80, 995,327,999.70 and 572,778,086.20

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Solution

The fourth proportional to 663,551,999.80, 995,327,999.70 and 572,778,086.20 is: 859,167,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,551,999.80 : 995,327,999.70 = 572,778,086.20 : x
  2. Step 2: Convert to fraction form
    663,551,999.80/995,327,999.70 = 572,778,086.20/x
  3. Step 3: Cross multiply
    663,551,999.80x = 995,327,999.70 × 572,778,086.20
  4. Step 4: Simplify right side
    663,551,999.80x = 570,102,066,809,440,256
  5. Step 5: Solve for x
    x = 570,102,066,809,440,256/663,551,999.80
  6. Step 6: Final answer
    x = 859,167,129.30

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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.