Home / 1,015,082,391.90-1,522,328,201.57-393,158,911.55

Finding the Fourth Proportional to 1,015,082,391.90, 1,522,328,201.57 and 393,158,911.55

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Solution

The fourth proportional to 1,015,082,391.90, 1,522,328,201.57 and 393,158,911.55 is: 589,623,959.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,082,391.90 : 1,522,328,201.57 = 393,158,911.55 : x
  2. Step 2: Convert to fraction form
    1,015,082,391.90/1,522,328,201.57 = 393,158,911.55/x
  3. Step 3: Cross multiply
    1,015,082,391.90x = 1,522,328,201.57 × 393,158,911.55
  4. Step 4: Simplify right side
    1,015,082,391.90x = 598,516,898,744,501,504
  5. Step 5: Solve for x
    x = 598,516,898,744,501,504/1,015,082,391.90
  6. Step 6: Final answer
    x = 589,623,959.12

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1.5x scale

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.