Home / 3,129,788,116.32-4,319,204,797.92-1,720,066,462.08

Finding the Fourth Proportional to 3,129,788,116.32, 4,319,204,797.92 and 1,720,066,462.08

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Solution

The fourth proportional to 3,129,788,116.32, 4,319,204,797.92 and 1,720,066,462.08 is: 2,373,745,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,788,116.32 : 4,319,204,797.92 = 1,720,066,462.08 : x
  2. Step 2: Convert to fraction form
    3,129,788,116.32/4,319,204,797.92 = 1,720,066,462.08/x
  3. Step 3: Cross multiply
    3,129,788,116.32x = 4,319,204,797.92 × 1,720,066,462.08
  4. Step 4: Simplify right side
    3,129,788,116.32x = 7,429,319,315,757,215,744
  5. Step 5: Solve for x
    x = 7,429,319,315,757,215,744/3,129,788,116.32
  6. Step 6: Final answer
    x = 2,373,745,135.34

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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.