Home / 715,914,991,322.55-989,255,022,324.75-509,791,377,239.52

Finding the Fourth Proportional to 715,914,991,322.55, 989,255,022,324.75 and 509,791,377,239.52

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Solution

The fourth proportional to 715,914,991,322.55, 989,255,022,324.75 and 509,791,377,239.52 is: 704,432,350,746.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,914,991,322.55 : 989,255,022,324.75 = 509,791,377,239.52 : x
  2. Step 2: Convert to fraction form
    715,914,991,322.55/989,255,022,324.75 = 509,791,377,239.52/x
  3. Step 3: Cross multiply
    715,914,991,322.55x = 989,255,022,324.75 × 509,791,377,239.52
  4. Step 4: Simplify right side
    715,914,991,322.55x = 504,313,680,272,046,457,618,432
  5. Step 5: Solve for x
    x = 504,313,680,272,046,457,618,432/715,914,991,322.55
  6. Step 6: Final answer
    x = 704,432,350,746.56

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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.