Home / 298,920,615.90-448,380,923.85-217,291,278.30

Finding the Fourth Proportional to 298,920,615.90, 448,380,923.85 and 217,291,278.30

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Solution

The fourth proportional to 298,920,615.90, 448,380,923.85 and 217,291,278.30 is: 325,936,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,920,615.90 : 448,380,923.85 = 217,291,278.30 : x
  2. Step 2: Convert to fraction form
    298,920,615.90/448,380,923.85 = 217,291,278.30/x
  3. Step 3: Cross multiply
    298,920,615.90x = 448,380,923.85 × 217,291,278.30
  4. Step 4: Simplify right side
    298,920,615.90x = 97,429,264,108,701,472
  5. Step 5: Solve for x
    x = 97,429,264,108,701,472/298,920,615.90
  6. Step 6: Final answer
    x = 325,936,917.45

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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.