Home / 723,618,605.86-1,085,289,457.11-280,961,295.46

Finding the Fourth Proportional to 723,618,605.86, 1,085,289,457.11 and 280,961,295.46

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Solution

The fourth proportional to 723,618,605.86, 1,085,289,457.11 and 280,961,295.46 is: 421,388,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,618,605.86 : 1,085,289,457.11 = 280,961,295.46 : x
  2. Step 2: Convert to fraction form
    723,618,605.86/1,085,289,457.11 = 280,961,295.46/x
  3. Step 3: Cross multiply
    723,618,605.86x = 1,085,289,457.11 × 280,961,295.46
  4. Step 4: Simplify right side
    723,618,605.86x = 304,924,331,818,705,664
  5. Step 5: Solve for x
    x = 304,924,331,818,705,664/723,618,605.86
  6. Step 6: Final answer
    x = 421,388,186.19

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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.