Home / 78,868,352.70-118,103,463.45-51,795,431.10

Finding the Fourth Proportional to 78,868,352.70, 118,103,463.45 and 51,795,431.10

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Solution

The fourth proportional to 78,868,352.70, 118,103,463.45 and 51,795,431.10 is: 77,562,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,868,352.70 : 118,103,463.45 = 51,795,431.10 : x
  2. Step 2: Convert to fraction form
    78,868,352.70/118,103,463.45 = 51,795,431.10/x
  3. Step 3: Cross multiply
    78,868,352.70x = 118,103,463.45 × 51,795,431.10
  4. Step 4: Simplify right side
    78,868,352.70x = 6,117,219,803,795,844
  5. Step 5: Solve for x
    x = 6,117,219,803,795,844/78,868,352.70
  6. Step 6: Final answer
    x = 77,562,413.75

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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.