Home / 78,868,346.20-118,103,453.70-51,795,424.60

Finding the Fourth Proportional to 78,868,346.20, 118,103,453.70 and 51,795,424.60

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Solution

The fourth proportional to 78,868,346.20, 118,103,453.70 and 51,795,424.60 is: 77,562,404.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,868,346.20 : 118,103,453.70 = 51,795,424.60 : x
  2. Step 2: Convert to fraction form
    78,868,346.20/118,103,453.70 = 51,795,424.60/x
  3. Step 3: Cross multiply
    78,868,346.20x = 118,103,453.70 × 51,795,424.60
  4. Step 4: Simplify right side
    78,868,346.20x = 6,117,218,531,117,941
  5. Step 5: Solve for x
    x = 6,117,218,531,117,941/78,868,346.20
  6. Step 6: Final answer
    x = 77,562,404.00

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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.