Home / 111,775,212.80-167,662,819.20-105,539,638.40

Finding the Fourth Proportional to 111,775,212.80, 167,662,819.20 and 105,539,638.40

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Solution

The fourth proportional to 111,775,212.80, 167,662,819.20 and 105,539,638.40 is: 158,309,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,775,212.80 : 167,662,819.20 = 105,539,638.40 : x
  2. Step 2: Convert to fraction form
    111,775,212.80/167,662,819.20 = 105,539,638.40/x
  3. Step 3: Cross multiply
    111,775,212.80x = 167,662,819.20 × 105,539,638.40
  4. Step 4: Simplify right side
    111,775,212.80x = 17,695,073,311,492,578
  5. Step 5: Solve for x
    x = 17,695,073,311,492,578/111,775,212.80
  6. Step 6: Final answer
    x = 158,309,457.60

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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.