Home / 20,790,174.72-31,163,271.00-7,830,718.03

Finding the Fourth Proportional to 20,790,174.72, 31,163,271.00 and 7,830,718.03

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Solution

The fourth proportional to 20,790,174.72, 31,163,271.00 and 7,830,718.03 is: 11,737,794.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,174.72 : 31,163,271.00 = 7,830,718.03 : x
  2. Step 2: Convert to fraction form
    20,790,174.72/31,163,271.00 = 7,830,718.03/x
  3. Step 3: Cross multiply
    20,790,174.72x = 31,163,271.00 × 7,830,718.03
  4. Step 4: Simplify right side
    20,790,174.72x = 244,030,788,158,114.97
  5. Step 5: Solve for x
    x = 244,030,788,158,114.97/20,790,174.72
  6. Step 6: Final answer
    x = 11,737,794.00

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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.