Home / 638,649,621.20-957,694,495.80-293,488,533.20

Finding the Fourth Proportional to 638,649,621.20, 957,694,495.80 and 293,488,533.20

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Solution

The fourth proportional to 638,649,621.20, 957,694,495.80 and 293,488,533.20 is: 440,104,156.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,649,621.20 : 957,694,495.80 = 293,488,533.20 : x
  2. Step 2: Convert to fraction form
    638,649,621.20/957,694,495.80 = 293,488,533.20/x
  3. Step 3: Cross multiply
    638,649,621.20x = 957,694,495.80 × 293,488,533.20
  4. Step 4: Simplify right side
    638,649,621.20x = 281,072,352,826,055,520
  5. Step 5: Solve for x
    x = 281,072,352,826,055,520/638,649,621.20
  6. Step 6: Final answer
    x = 440,104,156.48

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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.