Home / 8,430,787.80-11,631,374.82-5,531,788.08

Finding the Fourth Proportional to 8,430,787.80, 11,631,374.82 and 5,531,788.08

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Solution

The fourth proportional to 8,430,787.80, 11,631,374.82 and 5,531,788.08 is: 7,631,825.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430,787.80 : 11,631,374.82 = 5,531,788.08 : x
  2. Step 2: Convert to fraction form
    8,430,787.80/11,631,374.82 = 5,531,788.08/x
  3. Step 3: Cross multiply
    8,430,787.80x = 11,631,374.82 × 5,531,788.08
  4. Step 4: Simplify right side
    8,430,787.80x = 64,342,300,583,288.15
  5. Step 5: Solve for x
    x = 64,342,300,583,288.15/8,430,787.80
  6. Step 6: Final answer
    x = 7,631,825.41

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.