Home / 684,052,821.20-943,967,603.40-370,780,309.28

Finding the Fourth Proportional to 684,052,821.20, 943,967,603.40 and 370,780,309.28

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Solution

The fourth proportional to 684,052,821.20, 943,967,603.40 and 370,780,309.28 is: 511,663,118.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,052,821.20 : 943,967,603.40 = 370,780,309.28 : x
  2. Step 2: Convert to fraction form
    684,052,821.20/943,967,603.40 = 370,780,309.28/x
  3. Step 3: Cross multiply
    684,052,821.20x = 943,967,603.40 × 370,780,309.28
  4. Step 4: Simplify right side
    684,052,821.20x = 350,004,599,938,952,320
  5. Step 5: Solve for x
    x = 350,004,599,938,952,320/684,052,821.20
  6. Step 6: Final answer
    x = 511,663,118.83

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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.