Home / 210,280,665.60-315,420,998.40-119,581,401.60

Finding the Fourth Proportional to 210,280,665.60, 315,420,998.40 and 119,581,401.60

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Solution

The fourth proportional to 210,280,665.60, 315,420,998.40 and 119,581,401.60 is: 179,372,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,280,665.60 : 315,420,998.40 = 119,581,401.60 : x
  2. Step 2: Convert to fraction form
    210,280,665.60/315,420,998.40 = 119,581,401.60/x
  3. Step 3: Cross multiply
    210,280,665.60x = 315,420,998.40 × 119,581,401.60
  4. Step 4: Simplify right side
    210,280,665.60x = 37,718,485,082,743,352
  5. Step 5: Solve for x
    x = 37,718,485,082,743,352/210,280,665.60
  6. Step 6: Final answer
    x = 179,372,102.40

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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.