Home / 132,998,148.40-199,623,193.80-81,979,812.40

Finding the Fourth Proportional to 132,998,148.40, 199,623,193.80 and 81,979,812.40

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Solution

The fourth proportional to 132,998,148.40, 199,623,193.80 and 81,979,812.40 is: 123,047,367.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,998,148.40 : 199,623,193.80 = 81,979,812.40 : x
  2. Step 2: Convert to fraction form
    132,998,148.40/199,623,193.80 = 81,979,812.40/x
  3. Step 3: Cross multiply
    132,998,148.40x = 199,623,193.80 × 81,979,812.40
  4. Step 4: Simplify right side
    132,998,148.40x = 16,365,071,978,412,846
  5. Step 5: Solve for x
    x = 16,365,071,978,412,846/132,998,148.40
  6. Step 6: Final answer
    x = 123,047,367.01

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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.