Home / 1,281,870,402.66-1,922,536,558.44-361,531,507.68

Finding the Fourth Proportional to 1,281,870,402.66, 1,922,536,558.44 and 361,531,507.68

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Solution

The fourth proportional to 1,281,870,402.66, 1,922,536,558.44 and 361,531,507.68 is: 542,221,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,870,402.66 : 1,922,536,558.44 = 361,531,507.68 : x
  2. Step 2: Convert to fraction form
    1,281,870,402.66/1,922,536,558.44 = 361,531,507.68/x
  3. Step 3: Cross multiply
    1,281,870,402.66x = 1,922,536,558.44 × 361,531,507.68
  4. Step 4: Simplify right side
    1,281,870,402.66x = 695,057,540,542,731,648
  5. Step 5: Solve for x
    x = 695,057,540,542,731,648/1,281,870,402.66
  6. Step 6: Final answer
    x = 542,221,381.43

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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.