Home / 684,052,791.28-943,967,562-370,780,279.20

Finding the Fourth Proportional to 684,052,791.28, 943,967,562 and 370,780,279.20

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Solution

The fourth proportional to 684,052,791.28, 943,967,562 and 370,780,279.20 is: 511,663,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,052,791.28 : 943,967,562 = 370,780,279.20 : x
  2. Step 2: Convert to fraction form
    684,052,791.28/943,967,562 = 370,780,279.20/x
  3. Step 3: Cross multiply
    684,052,791.28x = 943,967,562 × 370,780,279.20
  4. Step 4: Simplify right side
    684,052,791.28x = 350,004,556,194,103,296
  5. Step 5: Solve for x
    x = 350,004,556,194,103,296/684,052,791.28
  6. Step 6: Final answer
    x = 511,663,077.26

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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.