Home / 318,980,039.90-478,470,059.85-299,609,015.45

Finding the Fourth Proportional to 318,980,039.90, 478,470,059.85 and 299,609,015.45

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Solution

The fourth proportional to 318,980,039.90, 478,470,059.85 and 299,609,015.45 is: 449,413,523.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,980,039.90 : 478,470,059.85 = 299,609,015.45 : x
  2. Step 2: Convert to fraction form
    318,980,039.90/478,470,059.85 = 299,609,015.45/x
  3. Step 3: Cross multiply
    318,980,039.90x = 478,470,059.85 × 299,609,015.45
  4. Step 4: Simplify right side
    318,980,039.90x = 143,353,943,553,961,072
  5. Step 5: Solve for x
    x = 143,353,943,553,961,072/318,980,039.90
  6. Step 6: Final answer
    x = 449,413,523.18

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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.