Home / 8,642,394,393.02-11,919,900,816.90-7,438,751,462.94

Finding the Fourth Proportional to 8,642,394,393.02, 11,919,900,816.90 and 7,438,751,462.94

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Solution

The fourth proportional to 8,642,394,393.02, 11,919,900,816.90 and 7,438,751,462.94 is: 10,259,793,247.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642,394,393.02 : 11,919,900,816.90 = 7,438,751,462.94 : x
  2. Step 2: Convert to fraction form
    8,642,394,393.02/11,919,900,816.90 = 7,438,751,462.94/x
  3. Step 3: Cross multiply
    8,642,394,393.02x = 11,919,900,816.90 × 7,438,751,462.94
  4. Step 4: Simplify right side
    8,642,394,393.02x = 88,669,179,639,814,569,984
  5. Step 5: Solve for x
    x = 88,669,179,639,814,569,984/8,642,394,393.02
  6. Step 6: Final answer
    x = 10,259,793,247.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.