Home / 221,325,525.60-305,434,080.40-122,206,005.36

Finding the Fourth Proportional to 221,325,525.60, 305,434,080.40 and 122,206,005.36

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Solution

The fourth proportional to 221,325,525.60, 305,434,080.40 and 122,206,005.36 is: 168,646,968.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,325,525.60 : 305,434,080.40 = 122,206,005.36 : x
  2. Step 2: Convert to fraction form
    221,325,525.60/305,434,080.40 = 122,206,005.36/x
  3. Step 3: Cross multiply
    221,325,525.60x = 305,434,080.40 × 122,206,005.36
  4. Step 4: Simplify right side
    221,325,525.60x = 37,325,878,866,489,064
  5. Step 5: Solve for x
    x = 37,325,878,866,489,064/221,325,525.60
  6. Step 6: Final answer
    x = 168,646,968.15

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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.