Home / 394,768,891.54-544,779,072.15-216,149,534.47

Finding the Fourth Proportional to 394,768,891.54, 544,779,072.15 and 216,149,534.47

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Solution

The fourth proportional to 394,768,891.54, 544,779,072.15 and 216,149,534.47 is: 298,285,263.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,768,891.54 : 544,779,072.15 = 216,149,534.47 : x
  2. Step 2: Convert to fraction form
    394,768,891.54/544,779,072.15 = 216,149,534.47/x
  3. Step 3: Cross multiply
    394,768,891.54x = 544,779,072.15 × 216,149,534.47
  4. Step 4: Simplify right side
    394,768,891.54x = 117,753,742,831,497,136
  5. Step 5: Solve for x
    x = 117,753,742,831,497,136/394,768,891.54
  6. Step 6: Final answer
    x = 298,285,263.50

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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.