Home / 3,130,989,911.24-4,320,768,857.40-1,721,317,858.16

Finding the Fourth Proportional to 3,130,989,911.24, 4,320,768,857.40 and 1,721,317,858.16

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Solution

The fourth proportional to 3,130,989,911.24, 4,320,768,857.40 and 1,721,317,858.16 is: 2,375,420,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130,989,911.24 : 4,320,768,857.40 = 1,721,317,858.16 : x
  2. Step 2: Convert to fraction form
    3,130,989,911.24/4,320,768,857.40 = 1,721,317,858.16/x
  3. Step 3: Cross multiply
    3,130,989,911.24x = 4,320,768,857.40 × 1,721,317,858.16
  4. Step 4: Simplify right side
    3,130,989,911.24x = 7,437,416,595,202,593,792
  5. Step 5: Solve for x
    x = 7,437,416,595,202,593,792/3,130,989,911.24
  6. Step 6: Final answer
    x = 2,375,420,172.55

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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.