Home / 78,865,417.04-118,192,382.54-61,379,089.24

Finding the Fourth Proportional to 78,865,417.04, 118,192,382.54 and 61,379,089.24

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Solution

The fourth proportional to 78,865,417.04, 118,192,382.54 and 61,379,089.24 is: 91,986,336.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,865,417.04 : 118,192,382.54 = 61,379,089.24 : x
  2. Step 2: Convert to fraction form
    78,865,417.04/118,192,382.54 = 61,379,089.24/x
  3. Step 3: Cross multiply
    78,865,417.04x = 118,192,382.54 × 61,379,089.24
  4. Step 4: Simplify right side
    78,865,417.04x = 7,254,540,795,410,879
  5. Step 5: Solve for x
    x = 7,254,540,795,410,879/78,865,417.04
  6. Step 6: Final answer
    x = 91,986,336.57

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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.