Home / 30,164,447.72-45,240,832-11,720,361.08

Finding the Fourth Proportional to 30,164,447.72, 45,240,832 and 11,720,361.08

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Solution

The fourth proportional to 30,164,447.72, 45,240,832 and 11,720,361.08 is: 17,578,272.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,164,447.72 : 45,240,832 = 11,720,361.08 : x
  2. Step 2: Convert to fraction form
    30,164,447.72/45,240,832 = 11,720,361.08/x
  3. Step 3: Cross multiply
    30,164,447.72x = 45,240,832 × 11,720,361.08
  4. Step 4: Simplify right side
    30,164,447.72x = 530,238,886,599,618.56
  5. Step 5: Solve for x
    x = 530,238,886,599,618.56/30,164,447.72
  6. Step 6: Final answer
    x = 17,578,272.66

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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.