Home / 815,899,101.60-1,223,848,652.40-654,655,965.60

Finding the Fourth Proportional to 815,899,101.60, 1,223,848,652.40 and 654,655,965.60

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Solution

The fourth proportional to 815,899,101.60, 1,223,848,652.40 and 654,655,965.60 is: 981,983,948.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,899,101.60 : 1,223,848,652.40 = 654,655,965.60 : x
  2. Step 2: Convert to fraction form
    815,899,101.60/1,223,848,652.40 = 654,655,965.60/x
  3. Step 3: Cross multiply
    815,899,101.60x = 1,223,848,652.40 × 654,655,965.60
  4. Step 4: Simplify right side
    815,899,101.60x = 801,199,821,285,180,800
  5. Step 5: Solve for x
    x = 801,199,821,285,180,800/815,899,101.60
  6. Step 6: Final answer
    x = 981,983,948.40

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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.