Home / 208,922,619.96-288,290,321.64-120,803,282.28

Finding the Fourth Proportional to 208,922,619.96, 288,290,321.64 and 120,803,282.28

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Solution

The fourth proportional to 208,922,619.96, 288,290,321.64 and 120,803,282.28 is: 166,695,291.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,922,619.96 : 288,290,321.64 = 120,803,282.28 : x
  2. Step 2: Convert to fraction form
    208,922,619.96/288,290,321.64 = 120,803,282.28/x
  3. Step 3: Cross multiply
    208,922,619.96x = 288,290,321.64 × 120,803,282.28
  4. Step 4: Simplify right side
    208,922,619.96x = 34,826,417,103,668,912
  5. Step 5: Solve for x
    x = 34,826,417,103,668,912/208,922,619.96
  6. Step 6: Final answer
    x = 166,695,291.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.