Home / 689,768,117.10-951,737,906.03-396,355,998.06

Finding the Fourth Proportional to 689,768,117.10, 951,737,906.03 and 396,355,998.06

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Solution

The fourth proportional to 689,768,117.10, 951,737,906.03 and 396,355,998.06 is: 546,889,626.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,768,117.10 : 951,737,906.03 = 396,355,998.06 : x
  2. Step 2: Convert to fraction form
    689,768,117.10/951,737,906.03 = 396,355,998.06/x
  3. Step 3: Cross multiply
    689,768,117.10x = 951,737,906.03 × 396,355,998.06
  4. Step 4: Simplify right side
    689,768,117.10x = 377,227,027,634,089,216
  5. Step 5: Solve for x
    x = 377,227,027,634,089,216/689,768,117.10
  6. Step 6: Final answer
    x = 546,889,626.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.