Home / 815,899,089.60-1,223,848,634.40-654,655,953.60

Finding the Fourth Proportional to 815,899,089.60, 1,223,848,634.40 and 654,655,953.60

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Solution

The fourth proportional to 815,899,089.60, 1,223,848,634.40 and 654,655,953.60 is: 981,983,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,899,089.60 : 1,223,848,634.40 = 654,655,953.60 : x
  2. Step 2: Convert to fraction form
    815,899,089.60/1,223,848,634.40 = 654,655,953.60/x
  3. Step 3: Cross multiply
    815,899,089.60x = 1,223,848,634.40 × 654,655,953.60
  4. Step 4: Simplify right side
    815,899,089.60x = 801,199,794,815,189,888
  5. Step 5: Solve for x
    x = 801,199,794,815,189,888/815,899,089.60
  6. Step 6: Final answer
    x = 981,983,930.40

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Double scale
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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.