Home / 319,800,922-478,316,563.62-188,329,808.86

Finding the Fourth Proportional to 319,800,922, 478,316,563.62 and 188,329,808.86

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Solution

The fourth proportional to 319,800,922, 478,316,563.62 and 188,329,808.86 is: 281,679,197.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,800,922 : 478,316,563.62 = 188,329,808.86 : x
  2. Step 2: Convert to fraction form
    319,800,922/478,316,563.62 = 188,329,808.86/x
  3. Step 3: Cross multiply
    319,800,922x = 478,316,563.62 × 188,329,808.86
  4. Step 4: Simplify right side
    319,800,922x = 90,081,267,001,126,640
  5. Step 5: Solve for x
    x = 90,081,267,001,126,640/319,800,922
  6. Step 6: Final answer
    x = 281,679,197.29

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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.