Home / 669,222,362.60-1,003,833,543.90-209,159,793.80

Finding the Fourth Proportional to 669,222,362.60, 1,003,833,543.90 and 209,159,793.80

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Solution

The fourth proportional to 669,222,362.60, 1,003,833,543.90 and 209,159,793.80 is: 313,739,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,222,362.60 : 1,003,833,543.90 = 209,159,793.80 : x
  2. Step 2: Convert to fraction form
    669,222,362.60/1,003,833,543.90 = 209,159,793.80/x
  3. Step 3: Cross multiply
    669,222,362.60x = 1,003,833,543.90 × 209,159,793.80
  4. Step 4: Simplify right side
    669,222,362.60x = 209,961,617,051,647,264
  5. Step 5: Solve for x
    x = 209,961,617,051,647,264/669,222,362.60
  6. Step 6: Final answer
    x = 313,739,690.70

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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.