Home / 151,783,514.85-209,461,320.99-82,168,895.64

Finding the Fourth Proportional to 151,783,514.85, 209,461,320.99 and 82,168,895.64

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Solution

The fourth proportional to 151,783,514.85, 209,461,320.99 and 82,168,895.64 is: 113,393,114.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,783,514.85 : 209,461,320.99 = 82,168,895.64 : x
  2. Step 2: Convert to fraction form
    151,783,514.85/209,461,320.99 = 82,168,895.64/x
  3. Step 3: Cross multiply
    151,783,514.85x = 209,461,320.99 × 82,168,895.64
  4. Step 4: Simplify right side
    151,783,514.85x = 17,211,205,425,043,852
  5. Step 5: Solve for x
    x = 17,211,205,425,043,852/151,783,514.85
  6. Step 6: Final answer
    x = 113,393,114.15

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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.