Home / 505,331,999.40-757,997,999.10-275,749,487.40

Finding the Fourth Proportional to 505,331,999.40, 757,997,999.10 and 275,749,487.40

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Solution

The fourth proportional to 505,331,999.40, 757,997,999.10 and 275,749,487.40 is: 413,624,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,331,999.40 : 757,997,999.10 = 275,749,487.40 : x
  2. Step 2: Convert to fraction form
    505,331,999.40/757,997,999.10 = 275,749,487.40/x
  3. Step 3: Cross multiply
    505,331,999.40x = 757,997,999.10 × 275,749,487.40
  4. Step 4: Simplify right side
    505,331,999.40x = 209,017,559,702,050,656
  5. Step 5: Solve for x
    x = 209,017,559,702,050,656/505,331,999.40
  6. Step 6: Final answer
    x = 413,624,231.10

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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.