Home / 72,431,444.40-108,647,166.60-18,578,756.40

Finding the Fourth Proportional to 72,431,444.40, 108,647,166.60 and 18,578,756.40

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Solution

The fourth proportional to 72,431,444.40, 108,647,166.60 and 18,578,756.40 is: 27,868,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,431,444.40 : 108,647,166.60 = 18,578,756.40 : x
  2. Step 2: Convert to fraction form
    72,431,444.40/108,647,166.60 = 18,578,756.40/x
  3. Step 3: Cross multiply
    72,431,444.40x = 108,647,166.60 × 18,578,756.40
  4. Step 4: Simplify right side
    72,431,444.40x = 2,018,529,241,811,616
  5. Step 5: Solve for x
    x = 2,018,529,241,811,616/72,431,444.40
  6. Step 6: Final answer
    x = 27,868,134.60

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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.