Home / 12,912,868.32-17,798,989-8,725,245.47

Finding the Fourth Proportional to 12,912,868.32, 17,798,989 and 8,725,245.47

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Solution

The fourth proportional to 12,912,868.32, 17,798,989 and 8,725,245.47 is: 12,026,804.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,868.32 : 17,798,989 = 8,725,245.47 : x
  2. Step 2: Convert to fraction form
    12,912,868.32/17,798,989 = 8,725,245.47/x
  3. Step 3: Cross multiply
    12,912,868.32x = 17,798,989 × 8,725,245.47
  4. Step 4: Simplify right side
    12,912,868.32x = 155,300,548,142,829.84
  5. Step 5: Solve for x
    x = 155,300,548,142,829.84/12,912,868.32
  6. Step 6: Final answer
    x = 12,026,804.91

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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.