Home / 12,653,995.21-18,984,229.57-3,678,547.21

Finding the Fourth Proportional to 12,653,995.21, 18,984,229.57 and 3,678,547.21

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Solution

The fourth proportional to 12,653,995.21, 18,984,229.57 and 3,678,547.21 is: 5,518,761.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653,995.21 : 18,984,229.57 = 3,678,547.21 : x
  2. Step 2: Convert to fraction form
    12,653,995.21/18,984,229.57 = 3,678,547.21/x
  3. Step 3: Cross multiply
    12,653,995.21x = 18,984,229.57 × 3,678,547.21
  4. Step 4: Simplify right side
    12,653,995.21x = 69,834,384,605,409.12
  5. Step 5: Solve for x
    x = 69,834,384,605,409.12/12,653,995.21
  6. Step 6: Final answer
    x = 5,518,761.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.