Home / 3,913,003,348.38-5,399,987,438.79-2,128,866,944.22

Finding the Fourth Proportional to 3,913,003,348.38, 5,399,987,438.79 and 2,128,866,944.22

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Solution

The fourth proportional to 3,913,003,348.38, 5,399,987,438.79 and 2,128,866,944.22 is: 2,937,859,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913,003,348.38 : 5,399,987,438.79 = 2,128,866,944.22 : x
  2. Step 2: Convert to fraction form
    3,913,003,348.38/5,399,987,438.79 = 2,128,866,944.22/x
  3. Step 3: Cross multiply
    3,913,003,348.38x = 5,399,987,438.79 × 2,128,866,944.22
  4. Step 4: Simplify right side
    3,913,003,348.38x = 11,495,854,757,643,251,712
  5. Step 5: Solve for x
    x = 11,495,854,757,643,251,712/3,913,003,348.38
  6. Step 6: Final answer
    x = 2,937,859,678.14

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1.5x scale

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.