Home / 2,646,871,428.80-3,970,456,442.40-806,684,139.20

Finding the Fourth Proportional to 2,646,871,428.80, 3,970,456,442.40 and 806,684,139.20

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Solution

The fourth proportional to 2,646,871,428.80, 3,970,456,442.40 and 806,684,139.20 is: 1,210,071,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646,871,428.80 : 3,970,456,442.40 = 806,684,139.20 : x
  2. Step 2: Convert to fraction form
    2,646,871,428.80/3,970,456,442.40 = 806,684,139.20/x
  3. Step 3: Cross multiply
    2,646,871,428.80x = 3,970,456,442.40 × 806,684,139.20
  4. Step 4: Simplify right side
    2,646,871,428.80x = 3,202,904,237,468,538,880
  5. Step 5: Solve for x
    x = 3,202,904,237,468,538,880/2,646,871,428.80
  6. Step 6: Final answer
    x = 1,210,071,710.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.