Home / 430,178,651.37-642,819,085.74-323,002,145.70

Finding the Fourth Proportional to 430,178,651.37, 642,819,085.74 and 323,002,145.70

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Solution

The fourth proportional to 430,178,651.37, 642,819,085.74 and 323,002,145.70 is: 482,664,454.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,178,651.37 : 642,819,085.74 = 323,002,145.70 : x
  2. Step 2: Convert to fraction form
    430,178,651.37/642,819,085.74 = 323,002,145.70/x
  3. Step 3: Cross multiply
    430,178,651.37x = 642,819,085.74 × 323,002,145.70
  4. Step 4: Simplify right side
    430,178,651.37x = 207,631,943,990,932,256
  5. Step 5: Solve for x
    x = 207,631,943,990,932,256/430,178,651.37
  6. Step 6: Final answer
    x = 482,664,454.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.