Home / 815,899,265.60-1,223,848,898.40-654,656,129.60

Finding the Fourth Proportional to 815,899,265.60, 1,223,848,898.40 and 654,656,129.60

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Solution

The fourth proportional to 815,899,265.60, 1,223,848,898.40 and 654,656,129.60 is: 981,984,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,899,265.60 : 1,223,848,898.40 = 654,656,129.60 : x
  2. Step 2: Convert to fraction form
    815,899,265.60/1,223,848,898.40 = 654,656,129.60/x
  3. Step 3: Cross multiply
    815,899,265.60x = 1,223,848,898.40 × 654,656,129.60
  4. Step 4: Simplify right side
    815,899,265.60x = 801,200,183,041,767,680
  5. Step 5: Solve for x
    x = 801,200,183,041,767,680/815,899,265.60
  6. Step 6: Final answer
    x = 981,984,194.40

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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.