Home / 738,961,793.40-1,019,769,976.56-399,870,270.57

Finding the Fourth Proportional to 738,961,793.40, 1,019,769,976.56 and 399,870,270.57

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Solution

The fourth proportional to 738,961,793.40, 1,019,769,976.56 and 399,870,270.57 is: 551,822,435.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,961,793.40 : 1,019,769,976.56 = 399,870,270.57 : x
  2. Step 2: Convert to fraction form
    738,961,793.40/1,019,769,976.56 = 399,870,270.57/x
  3. Step 3: Cross multiply
    738,961,793.40x = 1,019,769,976.56 × 399,870,270.57
  4. Step 4: Simplify right side
    738,961,793.40x = 407,775,696,446,209,728
  5. Step 5: Solve for x
    x = 407,775,696,446,209,728/738,961,793.40
  6. Step 6: Final answer
    x = 551,822,435.33

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Double scale
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1.5x scale

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.