Home / 1,252,945,589.45-1,878,250,002.19-423,319,041.26

Finding the Fourth Proportional to 1,252,945,589.45, 1,878,250,002.19 and 423,319,041.26

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Solution

The fourth proportional to 1,252,945,589.45, 1,878,250,002.19 and 423,319,041.26 is: 634,583,813.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,945,589.45 : 1,878,250,002.19 = 423,319,041.26 : x
  2. Step 2: Convert to fraction form
    1,252,945,589.45/1,878,250,002.19 = 423,319,041.26/x
  3. Step 3: Cross multiply
    1,252,945,589.45x = 1,878,250,002.19 × 423,319,041.26
  4. Step 4: Simplify right side
    1,252,945,589.45x = 795,098,990,170,257,664
  5. Step 5: Solve for x
    x = 795,098,990,170,257,664/1,252,945,589.45
  6. Step 6: Final answer
    x = 634,583,813.43

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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.