Home / 807,788,475.30-1,211,682,712.95-316,338,410.55

Finding the Fourth Proportional to 807,788,475.30, 1,211,682,712.95 and 316,338,410.55

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Solution

The fourth proportional to 807,788,475.30, 1,211,682,712.95 and 316,338,410.55 is: 474,507,615.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,788,475.30 : 1,211,682,712.95 = 316,338,410.55 : x
  2. Step 2: Convert to fraction form
    807,788,475.30/1,211,682,712.95 = 316,338,410.55/x
  3. Step 3: Cross multiply
    807,788,475.30x = 1,211,682,712.95 × 316,338,410.55
  4. Step 4: Simplify right side
    807,788,475.30x = 383,301,783,505,514,944
  5. Step 5: Solve for x
    x = 383,301,783,505,514,944/807,788,475.30
  6. Step 6: Final answer
    x = 474,507,615.83

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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.