Home / 290,259,541.34-435,228,698.73-115,205,237.90

Finding the Fourth Proportional to 290,259,541.34, 435,228,698.73 and 115,205,237.90

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Solution

The fourth proportional to 290,259,541.34, 435,228,698.73 and 115,205,237.90 is: 172,744,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,259,541.34 : 435,228,698.73 = 115,205,237.90 : x
  2. Step 2: Convert to fraction form
    290,259,541.34/435,228,698.73 = 115,205,237.90/x
  3. Step 3: Cross multiply
    290,259,541.34x = 435,228,698.73 × 115,205,237.90
  4. Step 4: Simplify right side
    290,259,541.34x = 50,140,625,778,188,856
  5. Step 5: Solve for x
    x = 50,140,625,778,188,856/290,259,541.34
  6. Step 6: Final answer
    x = 172,744,108.76

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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.