Home / 78,147,203.49-117,196,813.76-54,041,039.73

Finding the Fourth Proportional to 78,147,203.49, 117,196,813.76 and 54,041,039.73

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Solution

The fourth proportional to 78,147,203.49, 117,196,813.76 and 54,041,039.73 is: 81,044,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,147,203.49 : 117,196,813.76 = 54,041,039.73 : x
  2. Step 2: Convert to fraction form
    78,147,203.49/117,196,813.76 = 54,041,039.73/x
  3. Step 3: Cross multiply
    78,147,203.49x = 117,196,813.76 × 54,041,039.73
  4. Step 4: Simplify right side
    78,147,203.49x = 6,333,437,668,363,365
  5. Step 5: Solve for x
    x = 6,333,437,668,363,365/78,147,203.49
  6. Step 6: Final answer
    x = 81,044,968.80

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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.