Home / 640,719,200,399-884,193,372,137.40-347,744,127,731

Finding the Fourth Proportional to 640,719,200,399, 884,193,372,137.40 and 347,744,127,731

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Solution

The fourth proportional to 640,719,200,399, 884,193,372,137.40 and 347,744,127,731 is: 479,887,371,485.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,719,200,399 : 884,193,372,137.40 = 347,744,127,731 : x
  2. Step 2: Convert to fraction form
    640,719,200,399/884,193,372,137.40 = 347,744,127,731/x
  3. Step 3: Cross multiply
    640,719,200,399x = 884,193,372,137.40 × 347,744,127,731
  4. Step 4: Simplify right side
    640,719,200,399x = 307,473,052,939,451,652,636,672
  5. Step 5: Solve for x
    x = 307,473,052,939,451,652,636,672/640,719,200,399
  6. Step 6: Final answer
    x = 479,887,371,485.01

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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.