Home / 820,399,916.01-1,132,151,939.33-449,121,947.39

Finding the Fourth Proportional to 820,399,916.01, 1,132,151,939.33 and 449,121,947.39

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Solution

The fourth proportional to 820,399,916.01, 1,132,151,939.33 and 449,121,947.39 is: 619,788,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,399,916.01 : 1,132,151,939.33 = 449,121,947.39 : x
  2. Step 2: Convert to fraction form
    820,399,916.01/1,132,151,939.33 = 449,121,947.39/x
  3. Step 3: Cross multiply
    820,399,916.01x = 1,132,151,939.33 × 449,121,947.39
  4. Step 4: Simplify right side
    820,399,916.01x = 508,474,283,733,254,656
  5. Step 5: Solve for x
    x = 508,474,283,733,254,656/820,399,916.01
  6. Step 6: Final answer
    x = 619,788,317.64

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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.