Home / 669,222,362.10-1,003,833,543.15-209,159,793.30

Finding the Fourth Proportional to 669,222,362.10, 1,003,833,543.15 and 209,159,793.30

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Solution

The fourth proportional to 669,222,362.10, 1,003,833,543.15 and 209,159,793.30 is: 313,739,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,222,362.10 : 1,003,833,543.15 = 209,159,793.30 : x
  2. Step 2: Convert to fraction form
    669,222,362.10/1,003,833,543.15 = 209,159,793.30/x
  3. Step 3: Cross multiply
    669,222,362.10x = 1,003,833,543.15 × 209,159,793.30
  4. Step 4: Simplify right side
    669,222,362.10x = 209,961,616,392,860,640
  5. Step 5: Solve for x
    x = 209,961,616,392,860,640/669,222,362.10
  6. Step 6: Final answer
    x = 313,739,689.95

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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.