Home / 20,551,239.40-30,804,740.70-7,766,804.20

Finding the Fourth Proportional to 20,551,239.40, 30,804,740.70 and 7,766,804.20

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Solution

The fourth proportional to 20,551,239.40, 30,804,740.70 and 7,766,804.20 is: 11,641,847.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551,239.40 : 30,804,740.70 = 7,766,804.20 : x
  2. Step 2: Convert to fraction form
    20,551,239.40/30,804,740.70 = 7,766,804.20/x
  3. Step 3: Cross multiply
    20,551,239.40x = 30,804,740.70 × 7,766,804.20
  4. Step 4: Simplify right side
    20,551,239.40x = 239,254,389,448,670.94
  5. Step 5: Solve for x
    x = 239,254,389,448,670.94/20,551,239.40
  6. Step 6: Final answer
    x = 11,641,847.23

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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.