Home / 188,243,328.60-282,364,992.90-86,206,656.60

Finding the Fourth Proportional to 188,243,328.60, 282,364,992.90 and 86,206,656.60

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Solution

The fourth proportional to 188,243,328.60, 282,364,992.90 and 86,206,656.60 is: 129,309,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,243,328.60 : 282,364,992.90 = 86,206,656.60 : x
  2. Step 2: Convert to fraction form
    188,243,328.60/282,364,992.90 = 86,206,656.60/x
  3. Step 3: Cross multiply
    188,243,328.60x = 282,364,992.90 × 86,206,656.60
  4. Step 4: Simplify right side
    188,243,328.60x = 24,341,741,978,791,736
  5. Step 5: Solve for x
    x = 24,341,741,978,791,736/188,243,328.60
  6. Step 6: Final answer
    x = 129,309,984.90

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1.5x scale

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.