Home / 13,578,870.12-18,738,270.36-7,698,899.87

Finding the Fourth Proportional to 13,578,870.12, 18,738,270.36 and 7,698,899.87

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Solution

The fourth proportional to 13,578,870.12, 18,738,270.36 and 7,698,899.87 is: 10,624,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,870.12 : 18,738,270.36 = 7,698,899.87 : x
  2. Step 2: Convert to fraction form
    13,578,870.12/18,738,270.36 = 7,698,899.87/x
  3. Step 3: Cross multiply
    13,578,870.12x = 18,738,270.36 × 7,698,899.87
  4. Step 4: Simplify right side
    13,578,870.12x = 144,264,067,200,134.38
  5. Step 5: Solve for x
    x = 144,264,067,200,134.38/13,578,870.12
  6. Step 6: Final answer
    x = 10,624,158.41

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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.