Home / 39,995,380.64-55,193,695.08-21,660,666.32

Finding the Fourth Proportional to 39,995,380.64, 55,193,695.08 and 21,660,666.32

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Solution

The fourth proportional to 39,995,380.64, 55,193,695.08 and 21,660,666.32 is: 29,891,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,995,380.64 : 55,193,695.08 = 21,660,666.32 : x
  2. Step 2: Convert to fraction form
    39,995,380.64/55,193,695.08 = 21,660,666.32/x
  3. Step 3: Cross multiply
    39,995,380.64x = 55,193,695.08 × 21,660,666.32
  4. Step 4: Simplify right side
    39,995,380.64x = 1,195,532,212,095,705.75
  5. Step 5: Solve for x
    x = 1,195,532,212,095,705.75/39,995,380.64
  6. Step 6: Final answer
    x = 29,891,757.32

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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.