Home / 72,864,080.70-109,296,121.05-19,011,392.70

Finding the Fourth Proportional to 72,864,080.70, 109,296,121.05 and 19,011,392.70

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Solution

The fourth proportional to 72,864,080.70, 109,296,121.05 and 19,011,392.70 is: 28,517,089.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,864,080.70 : 109,296,121.05 = 19,011,392.70 : x
  2. Step 2: Convert to fraction form
    72,864,080.70/109,296,121.05 = 19,011,392.70/x
  3. Step 3: Cross multiply
    72,864,080.70x = 109,296,121.05 × 19,011,392.70
  4. Step 4: Simplify right side
    72,864,080.70x = 2,077,871,477,868,286.25
  5. Step 5: Solve for x
    x = 2,077,871,477,868,286.25/72,864,080.70
  6. Step 6: Final answer
    x = 28,517,089.05

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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.