Home / 30,767,314.90-42,471,968.01-19,170,607.97

Finding the Fourth Proportional to 30,767,314.90, 42,471,968.01 and 19,170,607.97

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Solution

The fourth proportional to 30,767,314.90, 42,471,968.01 and 19,170,607.97 is: 26,463,584.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767,314.90 : 42,471,968.01 = 19,170,607.97 : x
  2. Step 2: Convert to fraction form
    30,767,314.90/42,471,968.01 = 19,170,607.97/x
  3. Step 3: Cross multiply
    30,767,314.90x = 42,471,968.01 × 19,170,607.97
  4. Step 4: Simplify right side
    30,767,314.90x = 814,213,448,434,091
  5. Step 5: Solve for x
    x = 814,213,448,434,091/30,767,314.90
  6. Step 6: Final answer
    x = 26,463,584.85

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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.