Home / 403,265,860.20-604,898,790.30-278,430,369.30

Finding the Fourth Proportional to 403,265,860.20, 604,898,790.30 and 278,430,369.30

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Solution

The fourth proportional to 403,265,860.20, 604,898,790.30 and 278,430,369.30 is: 417,645,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,265,860.20 : 604,898,790.30 = 278,430,369.30 : x
  2. Step 2: Convert to fraction form
    403,265,860.20/604,898,790.30 = 278,430,369.30/x
  3. Step 3: Cross multiply
    403,265,860.20x = 604,898,790.30 × 278,430,369.30
  4. Step 4: Simplify right side
    403,265,860.20x = 168,422,193,572,352,256
  5. Step 5: Solve for x
    x = 168,422,193,572,352,256/403,265,860.20
  6. Step 6: Final answer
    x = 417,645,553.95

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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.