Home / 78,796,879.98-118,241,378.34-56,915,682.54

Finding the Fourth Proportional to 78,796,879.98, 118,241,378.34 and 56,915,682.54

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Solution

The fourth proportional to 78,796,879.98, 118,241,378.34 and 56,915,682.54 is: 85,406,792.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,796,879.98 : 118,241,378.34 = 56,915,682.54 : x
  2. Step 2: Convert to fraction form
    78,796,879.98/118,241,378.34 = 56,915,682.54/x
  3. Step 3: Cross multiply
    78,796,879.98x = 118,241,378.34 × 56,915,682.54
  4. Step 4: Simplify right side
    78,796,879.98x = 6,729,788,752,406,893
  5. Step 5: Solve for x
    x = 6,729,788,752,406,893/78,796,879.98
  6. Step 6: Final answer
    x = 85,406,792.17

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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.