Home / 166,212,605.40-249,323,184.90-78,753,600.60

Finding the Fourth Proportional to 166,212,605.40, 249,323,184.90 and 78,753,600.60

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Solution

The fourth proportional to 166,212,605.40, 249,323,184.90 and 78,753,600.60 is: 118,132,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,212,605.40 : 249,323,184.90 = 78,753,600.60 : x
  2. Step 2: Convert to fraction form
    166,212,605.40/249,323,184.90 = 78,753,600.60/x
  3. Step 3: Cross multiply
    166,212,605.40x = 249,323,184.90 × 78,753,600.60
  4. Step 4: Simplify right side
    166,212,605.40x = 19,635,098,523,934,548
  5. Step 5: Solve for x
    x = 19,635,098,523,934,548/166,212,605.40
  6. Step 6: Final answer
    x = 118,132,427.30

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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.