Home / 472,392,687.20-708,589,030.80-268,319,343.20

Finding the Fourth Proportional to 472,392,687.20, 708,589,030.80 and 268,319,343.20

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Solution

The fourth proportional to 472,392,687.20, 708,589,030.80 and 268,319,343.20 is: 402,479,014.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,687.20 : 708,589,030.80 = 268,319,343.20 : x
  2. Step 2: Convert to fraction form
    472,392,687.20/708,589,030.80 = 268,319,343.20/x
  3. Step 3: Cross multiply
    472,392,687.20x = 708,589,030.80 × 268,319,343.20
  4. Step 4: Simplify right side
    472,392,687.20x = 190,128,143,342,980,544
  5. Step 5: Solve for x
    x = 190,128,143,342,980,544/472,392,687.20
  6. Step 6: Final answer
    x = 402,479,014.80

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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.