Home / 531,562,919.40-797,344,379.10-143,384,999.40

Finding the Fourth Proportional to 531,562,919.40, 797,344,379.10 and 143,384,999.40

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Solution

The fourth proportional to 531,562,919.40, 797,344,379.10 and 143,384,999.40 is: 215,077,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,562,919.40 : 797,344,379.10 = 143,384,999.40 : x
  2. Step 2: Convert to fraction form
    531,562,919.40/797,344,379.10 = 143,384,999.40/x
  3. Step 3: Cross multiply
    531,562,919.40x = 797,344,379.10 × 143,384,999.40
  4. Step 4: Simplify right side
    531,562,919.40x = 114,327,223,318,846,880
  5. Step 5: Solve for x
    x = 114,327,223,318,846,880/531,562,919.40
  6. Step 6: Final answer
    x = 215,077,499.10

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Similar ratio
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1.5x scale

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.