Home / 30,586,113.69-42,209,012.44-16,647,435.57

Finding the Fourth Proportional to 30,586,113.69, 42,209,012.44 and 16,647,435.57

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Solution

The fourth proportional to 30,586,113.69, 42,209,012.44 and 16,647,435.57 is: 22,973,556.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,586,113.69 : 42,209,012.44 = 16,647,435.57 : x
  2. Step 2: Convert to fraction form
    30,586,113.69/42,209,012.44 = 16,647,435.57/x
  3. Step 3: Cross multiply
    30,586,113.69x = 42,209,012.44 × 16,647,435.57
  4. Step 4: Simplify right side
    30,586,113.69x = 702,671,815,175,400.25
  5. Step 5: Solve for x
    x = 702,671,815,175,400.25/30,586,113.69
  6. Step 6: Final answer
    x = 22,973,556.64

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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.