Home / 28,075,201.98-38,743,064.72-15,685,388.38

Finding the Fourth Proportional to 28,075,201.98, 38,743,064.72 and 15,685,388.38

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Solution

The fourth proportional to 28,075,201.98, 38,743,064.72 and 15,685,388.38 is: 21,645,437.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,075,201.98 : 38,743,064.72 = 15,685,388.38 : x
  2. Step 2: Convert to fraction form
    28,075,201.98/38,743,064.72 = 15,685,388.38/x
  3. Step 3: Cross multiply
    28,075,201.98x = 38,743,064.72 × 15,685,388.38
  4. Step 4: Simplify right side
    28,075,201.98x = 607,700,017,164,676
  5. Step 5: Solve for x
    x = 607,700,017,164,676/28,075,201.98
  6. Step 6: Final answer
    x = 21,645,437.05

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1.5x scale

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.