Home / 320,488,712.60-480,733,068.90-317,087,490.20

Finding the Fourth Proportional to 320,488,712.60, 480,733,068.90 and 317,087,490.20

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Solution

The fourth proportional to 320,488,712.60, 480,733,068.90 and 317,087,490.20 is: 475,631,235.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,488,712.60 : 480,733,068.90 = 317,087,490.20 : x
  2. Step 2: Convert to fraction form
    320,488,712.60/480,733,068.90 = 317,087,490.20/x
  3. Step 3: Cross multiply
    320,488,712.60x = 480,733,068.90 × 317,087,490.20
  4. Step 4: Simplify right side
    320,488,712.60x = 152,434,442,273,644,672
  5. Step 5: Solve for x
    x = 152,434,442,273,644,672/320,488,712.60
  6. Step 6: Final answer
    x = 475,631,235.30

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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.