Home / 30,382,078.80-45,594,113.40-21,869,691.60

Finding the Fourth Proportional to 30,382,078.80, 45,594,113.40 and 21,869,691.60

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Solution

The fourth proportional to 30,382,078.80, 45,594,113.40 and 21,869,691.60 is: 32,819,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,382,078.80 : 45,594,113.40 = 21,869,691.60 : x
  2. Step 2: Convert to fraction form
    30,382,078.80/45,594,113.40 = 21,869,691.60/x
  3. Step 3: Cross multiply
    30,382,078.80x = 45,594,113.40 × 21,869,691.60
  4. Step 4: Simplify right side
    30,382,078.80x = 997,129,198,833,427.50
  5. Step 5: Solve for x
    x = 997,129,198,833,427.50/30,382,078.80
  6. Step 6: Final answer
    x = 32,819,650.21

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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.