Home / 132,880,605.60-199,320,908.40-78,237,098.40

Finding the Fourth Proportional to 132,880,605.60, 199,320,908.40 and 78,237,098.40

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Solution

The fourth proportional to 132,880,605.60, 199,320,908.40 and 78,237,098.40 is: 117,355,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,880,605.60 : 199,320,908.40 = 78,237,098.40 : x
  2. Step 2: Convert to fraction form
    132,880,605.60/199,320,908.40 = 78,237,098.40/x
  3. Step 3: Cross multiply
    132,880,605.60x = 199,320,908.40 × 78,237,098.40
  4. Step 4: Simplify right side
    132,880,605.60x = 15,594,289,523,668,188
  5. Step 5: Solve for x
    x = 15,594,289,523,668,188/132,880,605.60
  6. Step 6: Final answer
    x = 117,355,647.60

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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.