Home / 5,315,754,742.40-7,973,632,113.60-3,138,972,406.40

Finding the Fourth Proportional to 5,315,754,742.40, 7,973,632,113.60 and 3,138,972,406.40

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Solution

The fourth proportional to 5,315,754,742.40, 7,973,632,113.60 and 3,138,972,406.40 is: 4,708,458,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,754,742.40 : 7,973,632,113.60 = 3,138,972,406.40 : x
  2. Step 2: Convert to fraction form
    5,315,754,742.40/7,973,632,113.60 = 3,138,972,406.40/x
  3. Step 3: Cross multiply
    5,315,754,742.40x = 7,973,632,113.60 × 3,138,972,406.40
  4. Step 4: Simplify right side
    5,315,754,742.40x = 25,029,011,183,375,310,848
  5. Step 5: Solve for x
    x = 25,029,011,183,375,310,848/5,315,754,742.40
  6. Step 6: Final answer
    x = 4,708,458,609.60

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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.