Home / 28,077,963.80-42,089,045.04-19,540,364.13

Finding the Fourth Proportional to 28,077,963.80, 42,089,045.04 and 19,540,364.13

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Solution

The fourth proportional to 28,077,963.80, 42,089,045.04 and 19,540,364.13 is: 29,291,129.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077,963.80 : 42,089,045.04 = 19,540,364.13 : x
  2. Step 2: Convert to fraction form
    28,077,963.80/42,089,045.04 = 19,540,364.13/x
  3. Step 3: Cross multiply
    28,077,963.80x = 42,089,045.04 × 19,540,364.13
  4. Step 4: Simplify right side
    28,077,963.80x = 822,435,265,965,570.38
  5. Step 5: Solve for x
    x = 822,435,265,965,570.38/28,077,963.80
  6. Step 6: Final answer
    x = 29,291,129.23

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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.