Home / 1,029,519,132.47-1,420,737,318.30-559,620,453.43

Finding the Fourth Proportional to 1,029,519,132.47, 1,420,737,318.30 and 559,620,453.43

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Solution

The fourth proportional to 1,029,519,132.47, 1,420,737,318.30 and 559,620,453.43 is: 772,276,723.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,519,132.47 : 1,420,737,318.30 = 559,620,453.43 : x
  2. Step 2: Convert to fraction form
    1,029,519,132.47/1,420,737,318.30 = 559,620,453.43/x
  3. Step 3: Cross multiply
    1,029,519,132.47x = 1,420,737,318.30 × 559,620,453.43
  4. Step 4: Simplify right side
    1,029,519,132.47x = 795,073,662,271,968,128
  5. Step 5: Solve for x
    x = 795,073,662,271,968,128/1,029,519,132.47
  6. Step 6: Final answer
    x = 772,276,723.37

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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.