Home / 825,890,501.57-1,139,758,967.43-449,528,912.73

Finding the Fourth Proportional to 825,890,501.57, 1,139,758,967.43 and 449,528,912.73

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Solution

The fourth proportional to 825,890,501.57, 1,139,758,967.43 and 449,528,912.73 is: 620,366,269.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,890,501.57 : 1,139,758,967.43 = 449,528,912.73 : x
  2. Step 2: Convert to fraction form
    825,890,501.57/1,139,758,967.43 = 449,528,912.73/x
  3. Step 3: Cross multiply
    825,890,501.57x = 1,139,758,967.43 × 449,528,912.73
  4. Step 4: Simplify right side
    825,890,501.57x = 512,354,609,403,075,456
  5. Step 5: Solve for x
    x = 512,354,609,403,075,456/825,890,501.57
  6. Step 6: Final answer
    x = 620,366,269.42

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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.