Home / 3,155,656,968.72-4,353,749,107.92-1,817,520,263.28

Finding the Fourth Proportional to 3,155,656,968.72, 4,353,749,107.92 and 1,817,520,263.28

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Solution

The fourth proportional to 3,155,656,968.72, 4,353,749,107.92 and 1,817,520,263.28 is: 2,507,568,884.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155,656,968.72 : 4,353,749,107.92 = 1,817,520,263.28 : x
  2. Step 2: Convert to fraction form
    3,155,656,968.72/4,353,749,107.92 = 1,817,520,263.28/x
  3. Step 3: Cross multiply
    3,155,656,968.72x = 4,353,749,107.92 × 1,817,520,263.28
  4. Step 4: Simplify right side
    3,155,656,968.72x = 7,913,027,224,881,823,744
  5. Step 5: Solve for x
    x = 7,913,027,224,881,823,744/3,155,656,968.72
  6. Step 6: Final answer
    x = 2,507,568,884.49

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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.