Home / 1,057,253,431.70-1,585,880,147.55-644,004,910.10

Finding the Fourth Proportional to 1,057,253,431.70, 1,585,880,147.55 and 644,004,910.10

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Solution

The fourth proportional to 1,057,253,431.70, 1,585,880,147.55 and 644,004,910.10 is: 966,007,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,253,431.70 : 1,585,880,147.55 = 644,004,910.10 : x
  2. Step 2: Convert to fraction form
    1,057,253,431.70/1,585,880,147.55 = 644,004,910.10/x
  3. Step 3: Cross multiply
    1,057,253,431.70x = 1,585,880,147.55 × 644,004,910.10
  4. Step 4: Simplify right side
    1,057,253,431.70x = 1,021,314,601,852,312,448
  5. Step 5: Solve for x
    x = 1,021,314,601,852,312,448/1,057,253,431.70
  6. Step 6: Final answer
    x = 966,007,365.15

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Double scale
Find fourth proportional to 1,057,253,432.70, 1,585,880,149.05 and 644,004,911.10
Similar ratio
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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.