Home / 815,057,715.70-1,222,586,573.55-406,911,027.70

Finding the Fourth Proportional to 815,057,715.70, 1,222,586,573.55 and 406,911,027.70

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Solution

The fourth proportional to 815,057,715.70, 1,222,586,573.55 and 406,911,027.70 is: 610,366,541.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,057,715.70 : 1,222,586,573.55 = 406,911,027.70 : x
  2. Step 2: Convert to fraction form
    815,057,715.70/1,222,586,573.55 = 406,911,027.70/x
  3. Step 3: Cross multiply
    815,057,715.70x = 1,222,586,573.55 × 406,911,027.70
  4. Step 4: Simplify right side
    815,057,715.70x = 497,483,959,095,452,096
  5. Step 5: Solve for x
    x = 497,483,959,095,452,096/815,057,715.70
  6. Step 6: Final answer
    x = 610,366,541.55

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Double scale
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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.