Home / 130,021,427.84-179,447,850.32-80,477,693.60

Finding the Fourth Proportional to 130,021,427.84, 179,447,850.32 and 80,477,693.60

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Solution

The fourth proportional to 130,021,427.84, 179,447,850.32 and 80,477,693.60 is: 111,070,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,021,427.84 : 179,447,850.32 = 80,477,693.60 : x
  2. Step 2: Convert to fraction form
    130,021,427.84/179,447,850.32 = 80,477,693.60/x
  3. Step 3: Cross multiply
    130,021,427.84x = 179,447,850.32 × 80,477,693.60
  4. Step 4: Simplify right side
    130,021,427.84x = 14,441,549,115,231,620
  5. Step 5: Solve for x
    x = 14,441,549,115,231,620/130,021,427.84
  6. Step 6: Final answer
    x = 111,070,531.64

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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.