Home / 99,662,238.40-149,209,922.40-76,798,465.60

Finding the Fourth Proportional to 99,662,238.40, 149,209,922.40 and 76,798,465.60

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Solution

The fourth proportional to 99,662,238.40, 149,209,922.40 and 76,798,465.60 is: 114,979,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,662,238.40 : 149,209,922.40 = 76,798,465.60 : x
  2. Step 2: Convert to fraction form
    99,662,238.40/149,209,922.40 = 76,798,465.60/x
  3. Step 3: Cross multiply
    99,662,238.40x = 149,209,922.40 × 76,798,465.60
  4. Step 4: Simplify right side
    99,662,238.40x = 11,459,093,092,615,070
  5. Step 5: Solve for x
    x = 11,459,093,092,615,070/99,662,238.40
  6. Step 6: Final answer
    x = 114,979,286.80

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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.