Home / 12,869,829.87-17,756,043.84-7,287,313.32

Finding the Fourth Proportional to 12,869,829.87, 17,756,043.84 and 7,287,313.32

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Solution

The fourth proportional to 12,869,829.87, 17,756,043.84 and 7,287,313.32 is: 10,054,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869,829.87 : 17,756,043.84 = 7,287,313.32 : x
  2. Step 2: Convert to fraction form
    12,869,829.87/17,756,043.84 = 7,287,313.32/x
  3. Step 3: Cross multiply
    12,869,829.87x = 17,756,043.84 × 7,287,313.32
  4. Step 4: Simplify right side
    12,869,829.87x = 129,393,854,785,735.95
  5. Step 5: Solve for x
    x = 129,393,854,785,735.95/12,869,829.87
  6. Step 6: Final answer
    x = 10,054,045.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.