Home / 12,418,394.70-17,137,765.70-6,912,075.45

Finding the Fourth Proportional to 12,418,394.70, 17,137,765.70 and 6,912,075.45

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Solution

The fourth proportional to 12,418,394.70, 17,137,765.70 and 6,912,075.45 is: 9,538,876.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418,394.70 : 17,137,765.70 = 6,912,075.45 : x
  2. Step 2: Convert to fraction form
    12,418,394.70/17,137,765.70 = 6,912,075.45/x
  3. Step 3: Cross multiply
    12,418,394.70x = 17,137,765.70 × 6,912,075.45
  4. Step 4: Simplify right side
    12,418,394.70x = 118,457,529,562,822.06
  5. Step 5: Solve for x
    x = 118,457,529,562,822.06/12,418,394.70
  6. Step 6: Final answer
    x = 9,538,876.19

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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.