Home / 118,346,153.85-163,317,913.58-66,135,189.57

Finding the Fourth Proportional to 118,346,153.85, 163,317,913.58 and 66,135,189.57

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Solution

The fourth proportional to 118,346,153.85, 163,317,913.58 and 66,135,189.57 is: 91,266,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,346,153.85 : 163,317,913.58 = 66,135,189.57 : x
  2. Step 2: Convert to fraction form
    118,346,153.85/163,317,913.58 = 66,135,189.57/x
  3. Step 3: Cross multiply
    118,346,153.85x = 163,317,913.58 × 66,135,189.57
  4. Step 4: Simplify right side
    118,346,153.85x = 10,801,061,173,642,910
  5. Step 5: Solve for x
    x = 10,801,061,173,642,910/118,346,153.85
  6. Step 6: Final answer
    x = 91,266,685.25

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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.