Home / 137,280,284.50-189,450,492.18-80,768,975.11

Finding the Fourth Proportional to 137,280,284.50, 189,450,492.18 and 80,768,975.11

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Solution

The fourth proportional to 137,280,284.50, 189,450,492.18 and 80,768,975.11 is: 111,463,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,280,284.50 : 189,450,492.18 = 80,768,975.11 : x
  2. Step 2: Convert to fraction form
    137,280,284.50/189,450,492.18 = 80,768,975.11/x
  3. Step 3: Cross multiply
    137,280,284.50x = 189,450,492.18 × 80,768,975.11
  4. Step 4: Simplify right side
    137,280,284.50x = 15,301,722,087,397,600
  5. Step 5: Solve for x
    x = 15,301,722,087,397,600/137,280,284.50
  6. Step 6: Final answer
    x = 111,463,362.30

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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.