Home / 28,077,979.58-42,089,068.70-19,540,379.94

Finding the Fourth Proportional to 28,077,979.58, 42,089,068.70 and 19,540,379.94

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Solution

The fourth proportional to 28,077,979.58, 42,089,068.70 and 19,540,379.94 is: 29,291,152.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077,979.58 : 42,089,068.70 = 19,540,379.94 : x
  2. Step 2: Convert to fraction form
    28,077,979.58/42,089,068.70 = 19,540,379.94/x
  3. Step 3: Cross multiply
    28,077,979.58x = 42,089,068.70 × 19,540,379.94
  4. Step 4: Simplify right side
    28,077,979.58x = 822,436,393,718,762
  5. Step 5: Solve for x
    x = 822,436,393,718,762/28,077,979.58
  6. Step 6: Final answer
    x = 29,291,152.93

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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.