Home / 640,719,200,584.71-884,193,372,392.73-347,744,127,915.81

Finding the Fourth Proportional to 640,719,200,584.71, 884,193,372,392.73 and 347,744,127,915.81

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Solution

The fourth proportional to 640,719,200,584.71, 884,193,372,392.73 and 347,744,127,915.81 is: 479,887,371,739.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,719,200,584.71 : 884,193,372,392.73 = 347,744,127,915.81 : x
  2. Step 2: Convert to fraction form
    640,719,200,584.71/884,193,372,392.73 = 347,744,127,915.81/x
  3. Step 3: Cross multiply
    640,719,200,584.71x = 884,193,372,392.73 × 347,744,127,915.81
  4. Step 4: Simplify right side
    640,719,200,584.71x = 307,473,053,191,648,911,032,320
  5. Step 5: Solve for x
    x = 307,473,053,191,648,911,032,320/640,719,200,584.71
  6. Step 6: Final answer
    x = 479,887,371,739.53

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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.