Home / 149,120,464,217.94-205,786,232,749.62-80,531,870,733.18

Finding the Fourth Proportional to 149,120,464,217.94, 205,786,232,749.62 and 80,531,870,733.18

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Solution

The fourth proportional to 149,120,464,217.94, 205,786,232,749.62 and 80,531,870,733.18 is: 111,133,977,361.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,120,464,217.94 : 205,786,232,749.62 = 80,531,870,733.18 : x
  2. Step 2: Convert to fraction form
    149,120,464,217.94/205,786,232,749.62 = 80,531,870,733.18/x
  3. Step 3: Cross multiply
    149,120,464,217.94x = 205,786,232,749.62 × 80,531,870,733.18
  4. Step 4: Simplify right side
    149,120,464,217.94x = 16,572,350,294,460,488,220,672
  5. Step 5: Solve for x
    x = 16,572,350,294,460,488,220,672/149,120,464,217.94
  6. Step 6: Final answer
    x = 111,133,977,361.01

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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.