Home / 5,138,196,739.42-7,707,301,711.33-1,407,520,943.57

Finding the Fourth Proportional to 5,138,196,739.42, 7,707,301,711.33 and 1,407,520,943.57

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Solution

The fourth proportional to 5,138,196,739.42, 7,707,301,711.33 and 1,407,520,943.57 is: 2,111,283,223.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,138,196,739.42 : 7,707,301,711.33 = 1,407,520,943.57 : x
  2. Step 2: Convert to fraction form
    5,138,196,739.42/7,707,301,711.33 = 1,407,520,943.57/x
  3. Step 3: Cross multiply
    5,138,196,739.42x = 7,707,301,711.33 × 1,407,520,943.57
  4. Step 4: Simplify right side
    5,138,196,739.42x = 10,848,188,577,128,441,856
  5. Step 5: Solve for x
    x = 10,848,188,577,128,441,856/5,138,196,739.42
  6. Step 6: Final answer
    x = 2,111,283,223.92

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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.