Home / 200,555,999.60-300,833,999.40-172,814,779.40

Finding the Fourth Proportional to 200,555,999.60, 300,833,999.40 and 172,814,779.40

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Solution

The fourth proportional to 200,555,999.60, 300,833,999.40 and 172,814,779.40 is: 259,222,169.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,555,999.60 : 300,833,999.40 = 172,814,779.40 : x
  2. Step 2: Convert to fraction form
    200,555,999.60/300,833,999.40 = 172,814,779.40/x
  3. Step 3: Cross multiply
    200,555,999.60x = 300,833,999.40 × 172,814,779.40
  4. Step 4: Simplify right side
    200,555,999.60x = 51,988,561,242,330,728
  5. Step 5: Solve for x
    x = 51,988,561,242,330,728/200,555,999.60
  6. Step 6: Final answer
    x = 259,222,169.10

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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.