Home / 28,430,640.98-42,645,926.88-9,261,366.74

Finding the Fourth Proportional to 28,430,640.98, 42,645,926.88 and 9,261,366.74

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Solution

The fourth proportional to 28,430,640.98, 42,645,926.88 and 9,261,366.74 is: 13,892,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430,640.98 : 42,645,926.88 = 9,261,366.74 : x
  2. Step 2: Convert to fraction form
    28,430,640.98/42,645,926.88 = 9,261,366.74/x
  3. Step 3: Cross multiply
    28,430,640.98x = 42,645,926.88 × 9,261,366.74
  4. Step 4: Simplify right side
    28,430,640.98x = 394,959,568,802,904
  5. Step 5: Solve for x
    x = 394,959,568,802,904/28,430,640.98
  6. Step 6: Final answer
    x = 13,892,038.84

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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.