Home / 684,052,819.20-943,967,600.64-370,780,307.28

Finding the Fourth Proportional to 684,052,819.20, 943,967,600.64 and 370,780,307.28

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Solution

The fourth proportional to 684,052,819.20, 943,967,600.64 and 370,780,307.28 is: 511,663,116.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,052,819.20 : 943,967,600.64 = 370,780,307.28 : x
  2. Step 2: Convert to fraction form
    684,052,819.20/943,967,600.64 = 370,780,307.28/x
  3. Step 3: Cross multiply
    684,052,819.20x = 943,967,600.64 × 370,780,307.28
  4. Step 4: Simplify right side
    684,052,819.20x = 350,004,597,027,663,488
  5. Step 5: Solve for x
    x = 350,004,597,027,663,488/684,052,819.20
  6. Step 6: Final answer
    x = 511,663,116.07

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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.