Home / 808,730,818.20-1,213,096,227.30-291,241,128.60

Finding the Fourth Proportional to 808,730,818.20, 1,213,096,227.30 and 291,241,128.60

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Solution

The fourth proportional to 808,730,818.20, 1,213,096,227.30 and 291,241,128.60 is: 436,861,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,730,818.20 : 1,213,096,227.30 = 291,241,128.60 : x
  2. Step 2: Convert to fraction form
    808,730,818.20/1,213,096,227.30 = 291,241,128.60/x
  3. Step 3: Cross multiply
    808,730,818.20x = 1,213,096,227.30 × 291,241,128.60
  4. Step 4: Simplify right side
    808,730,818.20x = 353,303,514,339,254,144
  5. Step 5: Solve for x
    x = 353,303,514,339,254,144/808,730,818.20
  6. Step 6: Final answer
    x = 436,861,692.90

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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.