Home / 780,045,861.20-1,170,242,002.20-262,461,693.20

Finding the Fourth Proportional to 780,045,861.20, 1,170,242,002.20 and 262,461,693.20

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Solution

The fourth proportional to 780,045,861.20, 1,170,242,002.20 and 262,461,693.20 is: 393,750,819.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,045,861.20 : 1,170,242,002.20 = 262,461,693.20 : x
  2. Step 2: Convert to fraction form
    780,045,861.20/1,170,242,002.20 = 262,461,693.20/x
  3. Step 3: Cross multiply
    780,045,861.20x = 1,170,242,002.20 × 262,461,693.20
  4. Step 4: Simplify right side
    780,045,861.20x = 307,143,697,351,170,112
  5. Step 5: Solve for x
    x = 307,143,697,351,170,112/780,045,861.20
  6. Step 6: Final answer
    x = 393,750,819.83

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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.