Home / 20,160,656.70-30,240,985.05-7,376,912.70

Finding the Fourth Proportional to 20,160,656.70, 30,240,985.05 and 7,376,912.70

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Solution

The fourth proportional to 20,160,656.70, 30,240,985.05 and 7,376,912.70 is: 11,065,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160,656.70 : 30,240,985.05 = 7,376,912.70 : x
  2. Step 2: Convert to fraction form
    20,160,656.70/30,240,985.05 = 7,376,912.70/x
  3. Step 3: Cross multiply
    20,160,656.70x = 30,240,985.05 × 7,376,912.70
  4. Step 4: Simplify right side
    20,160,656.70x = 223,085,106,675,855.16
  5. Step 5: Solve for x
    x = 223,085,106,675,855.16/20,160,656.70
  6. Step 6: Final answer
    x = 11,065,369.05

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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.