Home / 1,270,694,435.35-1,900,190,389.19-1,208,707,157.11

Finding the Fourth Proportional to 1,270,694,435.35, 1,900,190,389.19 and 1,208,707,157.11

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Solution

The fourth proportional to 1,270,694,435.35, 1,900,190,389.19 and 1,208,707,157.11 is: 1,807,494,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,694,435.35 : 1,900,190,389.19 = 1,208,707,157.11 : x
  2. Step 2: Convert to fraction form
    1,270,694,435.35/1,900,190,389.19 = 1,208,707,157.11/x
  3. Step 3: Cross multiply
    1,270,694,435.35x = 1,900,190,389.19 × 1,208,707,157.11
  4. Step 4: Simplify right side
    1,270,694,435.35x = 2,296,773,723,284,861,184
  5. Step 5: Solve for x
    x = 2,296,773,723,284,861,184/1,270,694,435.35
  6. Step 6: Final answer
    x = 1,807,494,909.39

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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.