Home / 30,767,295.57-42,471,941.40-19,170,588.75

Finding the Fourth Proportional to 30,767,295.57, 42,471,941.40 and 19,170,588.75

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Solution

The fourth proportional to 30,767,295.57, 42,471,941.40 and 19,170,588.75 is: 26,463,558.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767,295.57 : 42,471,941.40 = 19,170,588.75 : x
  2. Step 2: Convert to fraction form
    30,767,295.57/42,471,941.40 = 19,170,588.75/x
  3. Step 3: Cross multiply
    30,767,295.57x = 42,471,941.40 × 19,170,588.75
  4. Step 4: Simplify right side
    30,767,295.57x = 814,212,121,993,499.25
  5. Step 5: Solve for x
    x = 814,212,121,993,499.25/30,767,295.57
  6. Step 6: Final answer
    x = 26,463,558.36

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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.