Home / 208,613,998.80-312,920,998.20-55,283,720.40

Finding the Fourth Proportional to 208,613,998.80, 312,920,998.20 and 55,283,720.40

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Solution

The fourth proportional to 208,613,998.80, 312,920,998.20 and 55,283,720.40 is: 82,925,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,613,998.80 : 312,920,998.20 = 55,283,720.40 : x
  2. Step 2: Convert to fraction form
    208,613,998.80/312,920,998.20 = 55,283,720.40/x
  3. Step 3: Cross multiply
    208,613,998.80x = 312,920,998.20 × 55,283,720.40
  4. Step 4: Simplify right side
    208,613,998.80x = 17,299,436,971,777,702
  5. Step 5: Solve for x
    x = 17,299,436,971,777,702/208,613,998.80
  6. Step 6: Final answer
    x = 82,925,580.60

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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.