Home / 122,479,015.40-183,505,946.70-79,326,006.20

Finding the Fourth Proportional to 122,479,015.40, 183,505,946.70 and 79,326,006.20

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Solution

The fourth proportional to 122,479,015.40, 183,505,946.70 and 79,326,006.20 is: 118,851,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,479,015.40 : 183,505,946.70 = 79,326,006.20 : x
  2. Step 2: Convert to fraction form
    122,479,015.40/183,505,946.70 = 79,326,006.20/x
  3. Step 3: Cross multiply
    122,479,015.40x = 183,505,946.70 × 79,326,006.20
  4. Step 4: Simplify right side
    122,479,015.40x = 14,556,793,865,661,070
  5. Step 5: Solve for x
    x = 14,556,793,865,661,070/122,479,015.40
  6. Step 6: Final answer
    x = 118,851,329.90

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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.