Home / 933,161,785.20-1,287,738,314.28-515,465,080.56

Finding the Fourth Proportional to 933,161,785.20, 1,287,738,314.28 and 515,465,080.56

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Solution

The fourth proportional to 933,161,785.20, 1,287,738,314.28 and 515,465,080.56 is: 711,328,029.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,161,785.20 : 1,287,738,314.28 = 515,465,080.56 : x
  2. Step 2: Convert to fraction form
    933,161,785.20/1,287,738,314.28 = 515,465,080.56/x
  3. Step 3: Cross multiply
    933,161,785.20x = 1,287,738,314.28 × 515,465,080.56
  4. Step 4: Simplify right side
    933,161,785.20x = 663,784,133,910,538,752
  5. Step 5: Solve for x
    x = 663,784,133,910,538,752/933,161,785.20
  6. Step 6: Final answer
    x = 711,328,029.54

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1.5x scale

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.