Home / 13,870,782.30-20,814,393-7,727,905.58

Finding the Fourth Proportional to 13,870,782.30, 20,814,393 and 7,727,905.58

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Solution

The fourth proportional to 13,870,782.30, 20,814,393 and 7,727,905.58 is: 11,596,437.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,870,782.30 : 20,814,393 = 7,727,905.58 : x
  2. Step 2: Convert to fraction form
    13,870,782.30/20,814,393 = 7,727,905.58/x
  3. Step 3: Cross multiply
    13,870,782.30x = 20,814,393 × 7,727,905.58
  4. Step 4: Simplify right side
    13,870,782.30x = 160,851,663,809,012.94
  5. Step 5: Solve for x
    x = 160,851,663,809,012.94/13,870,782.30
  6. Step 6: Final answer
    x = 11,596,437.77

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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.