Home / 366,471,907.80-549,707,861.70-221,069,650.20

Finding the Fourth Proportional to 366,471,907.80, 549,707,861.70 and 221,069,650.20

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Solution

The fourth proportional to 366,471,907.80, 549,707,861.70 and 221,069,650.20 is: 331,604,475.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,471,907.80 : 549,707,861.70 = 221,069,650.20 : x
  2. Step 2: Convert to fraction form
    366,471,907.80/549,707,861.70 = 221,069,650.20/x
  3. Step 3: Cross multiply
    366,471,907.80x = 549,707,861.70 × 221,069,650.20
  4. Step 4: Simplify right side
    366,471,907.80x = 121,523,724,698,208,976
  5. Step 5: Solve for x
    x = 121,523,724,698,208,976/366,471,907.80
  6. Step 6: Final answer
    x = 331,604,475.30

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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.