Home / 7,172,075.87-9,897,176.51-3,908,820.51

Finding the Fourth Proportional to 7,172,075.87, 9,897,176.51 and 3,908,820.51

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Solution

The fourth proportional to 7,172,075.87, 9,897,176.51 and 3,908,820.51 is: 5,394,015.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,075.87 : 9,897,176.51 = 3,908,820.51 : x
  2. Step 2: Convert to fraction form
    7,172,075.87/9,897,176.51 = 3,908,820.51/x
  3. Step 3: Cross multiply
    7,172,075.87x = 9,897,176.51 × 3,908,820.51
  4. Step 4: Simplify right side
    7,172,075.87x = 38,686,286,533,378.22
  5. Step 5: Solve for x
    x = 38,686,286,533,378.22/7,172,075.87
  6. Step 6: Final answer
    x = 5,394,015.24

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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.