Home / 209,500,221,878.60-314,250,332,817.90-143,380,458,422.60

Finding the Fourth Proportional to 209,500,221,878.60, 314,250,332,817.90 and 143,380,458,422.60

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Solution

The fourth proportional to 209,500,221,878.60, 314,250,332,817.90 and 143,380,458,422.60 is: 215,070,687,633.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,500,221,878.60 : 314,250,332,817.90 = 143,380,458,422.60 : x
  2. Step 2: Convert to fraction form
    209,500,221,878.60/314,250,332,817.90 = 143,380,458,422.60/x
  3. Step 3: Cross multiply
    209,500,221,878.60x = 314,250,332,817.90 × 143,380,458,422.60
  4. Step 4: Simplify right side
    209,500,221,878.60x = 45,057,356,778,885,131,272,192
  5. Step 5: Solve for x
    x = 45,057,356,778,885,131,272,192/209,500,221,878.60
  6. Step 6: Final answer
    x = 215,070,687,633.90

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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.