Home / 208,095,570.80-312,048,877.80-78,660,162.80

Finding the Fourth Proportional to 208,095,570.80, 312,048,877.80 and 78,660,162.80

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Solution

The fourth proportional to 208,095,570.80, 312,048,877.80 and 78,660,162.80 is: 117,954,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,095,570.80 : 312,048,877.80 = 78,660,162.80 : x
  2. Step 2: Convert to fraction form
    208,095,570.80/312,048,877.80 = 78,660,162.80/x
  3. Step 3: Cross multiply
    208,095,570.80x = 312,048,877.80 × 78,660,162.80
  4. Step 4: Simplify right side
    208,095,570.80x = 24,545,815,529,305,304
  5. Step 5: Solve for x
    x = 24,545,815,529,305,304/208,095,570.80
  6. Step 6: Final answer
    x = 117,954,531.35

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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.