Home / 290,412,000.30-435,618,000.45-208,782,662.70

Finding the Fourth Proportional to 290,412,000.30, 435,618,000.45 and 208,782,662.70

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Solution

The fourth proportional to 290,412,000.30, 435,618,000.45 and 208,782,662.70 is: 313,173,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,412,000.30 : 435,618,000.45 = 208,782,662.70 : x
  2. Step 2: Convert to fraction form
    290,412,000.30/435,618,000.45 = 208,782,662.70/x
  3. Step 3: Cross multiply
    290,412,000.30x = 435,618,000.45 × 208,782,662.70
  4. Step 4: Simplify right side
    290,412,000.30x = 90,949,486,054,000,784
  5. Step 5: Solve for x
    x = 90,949,486,054,000,784/290,412,000.30
  6. Step 6: Final answer
    x = 313,173,994.05

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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.