Home / 132,991,344.40-199,612,987.80-81,973,008.40

Finding the Fourth Proportional to 132,991,344.40, 199,612,987.80 and 81,973,008.40

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Solution

The fourth proportional to 132,991,344.40, 199,612,987.80 and 81,973,008.40 is: 123,037,158.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,991,344.40 : 199,612,987.80 = 81,973,008.40 : x
  2. Step 2: Convert to fraction form
    132,991,344.40/199,612,987.80 = 81,973,008.40/x
  3. Step 3: Cross multiply
    132,991,344.40x = 199,612,987.80 × 81,973,008.40
  4. Step 4: Simplify right side
    132,991,344.40x = 16,362,877,125,678,500
  5. Step 5: Solve for x
    x = 16,362,877,125,678,500/132,991,344.40
  6. Step 6: Final answer
    x = 123,037,158.54

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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.