Home / 13,180,813.80-19,782,884.70-7,782,714.60

Finding the Fourth Proportional to 13,180,813.80, 19,782,884.70 and 7,782,714.60

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Solution

The fourth proportional to 13,180,813.80, 19,782,884.70 and 7,782,714.60 is: 11,680,959.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,180,813.80 : 19,782,884.70 = 7,782,714.60 : x
  2. Step 2: Convert to fraction form
    13,180,813.80/19,782,884.70 = 7,782,714.60/x
  3. Step 3: Cross multiply
    13,180,813.80x = 19,782,884.70 × 7,782,714.60
  4. Step 4: Simplify right side
    13,180,813.80x = 153,964,545,584,806.59
  5. Step 5: Solve for x
    x = 153,964,545,584,806.59/13,180,813.80
  6. Step 6: Final answer
    x = 11,680,959.00

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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.