Home / 43,178,973.12-64,786,361.76-18,905,371.20

Finding the Fourth Proportional to 43,178,973.12, 64,786,361.76 and 18,905,371.20

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Solution

The fourth proportional to 43,178,973.12, 64,786,361.76 and 18,905,371.20 is: 28,365,895.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,178,973.12 : 64,786,361.76 = 18,905,371.20 : x
  2. Step 2: Convert to fraction form
    43,178,973.12/64,786,361.76 = 18,905,371.20/x
  3. Step 3: Cross multiply
    43,178,973.12x = 64,786,361.76 × 18,905,371.20
  4. Step 4: Simplify right side
    43,178,973.12x = 1,224,810,217,770,285.25
  5. Step 5: Solve for x
    x = 1,224,810,217,770,285.25/43,178,973.12
  6. Step 6: Final answer
    x = 28,365,895.00

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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.