Home / 716,656,213,593.05-989,221,260,398.90-570,436,887,377.51

Finding the Fourth Proportional to 716,656,213,593.05, 989,221,260,398.90 and 570,436,887,377.51

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Solution

The fourth proportional to 716,656,213,593.05, 989,221,260,398.90 and 570,436,887,377.51 is: 787,390,503,293.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,656,213,593.05 : 989,221,260,398.90 = 570,436,887,377.51 : x
  2. Step 2: Convert to fraction form
    716,656,213,593.05/989,221,260,398.90 = 570,436,887,377.51/x
  3. Step 3: Cross multiply
    716,656,213,593.05x = 989,221,260,398.90 × 570,436,887,377.51
  4. Step 4: Simplify right side
    716,656,213,593.05x = 564,288,296,709,605,864,505,344
  5. Step 5: Solve for x
    x = 564,288,296,709,605,864,505,344/716,656,213,593.05
  6. Step 6: Final answer
    x = 787,390,503,293.72

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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.