Home / 13,698,963.07-18,904,874.51-7,818,479.30

Finding the Fourth Proportional to 13,698,963.07, 18,904,874.51 and 7,818,479.30

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Solution

The fourth proportional to 13,698,963.07, 18,904,874.51 and 7,818,479.30 is: 10,789,675.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698,963.07 : 18,904,874.51 = 7,818,479.30 : x
  2. Step 2: Convert to fraction form
    13,698,963.07/18,904,874.51 = 7,818,479.30/x
  3. Step 3: Cross multiply
    13,698,963.07x = 18,904,874.51 × 7,818,479.30
  4. Step 4: Simplify right side
    13,698,963.07x = 147,807,370,092,341.03
  5. Step 5: Solve for x
    x = 147,807,370,092,341.03/13,698,963.07
  6. Step 6: Final answer
    x = 10,789,675.79

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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.