Home / 15,087,075.05-20,820,608.67-10,684,676.85

Finding the Fourth Proportional to 15,087,075.05, 20,820,608.67 and 10,684,676.85

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Solution

The fourth proportional to 15,087,075.05, 20,820,608.67 and 10,684,676.85 is: 14,745,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,087,075.05 : 20,820,608.67 = 10,684,676.85 : x
  2. Step 2: Convert to fraction form
    15,087,075.05/20,820,608.67 = 10,684,676.85/x
  3. Step 3: Cross multiply
    15,087,075.05x = 20,820,608.67 × 10,684,676.85
  4. Step 4: Simplify right side
    15,087,075.05x = 222,461,475,459,258.31
  5. Step 5: Solve for x
    x = 222,461,475,459,258.31/15,087,075.05
  6. Step 6: Final answer
    x = 14,745,169.28

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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.