Home / 12,828,698.81-17,703,607.68-7,027,686.78

Finding the Fourth Proportional to 12,828,698.81, 17,703,607.68 and 7,027,686.78

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Solution

The fourth proportional to 12,828,698.81, 17,703,607.68 and 7,027,686.78 is: 9,698,209.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828,698.81 : 17,703,607.68 = 7,027,686.78 : x
  2. Step 2: Convert to fraction form
    12,828,698.81/17,703,607.68 = 7,027,686.78/x
  3. Step 3: Cross multiply
    12,828,698.81x = 17,703,607.68 × 7,027,686.78
  4. Step 4: Simplify right side
    12,828,698.81x = 124,415,409,651,042.47
  5. Step 5: Solve for x
    x = 124,415,409,651,042.47/12,828,698.81
  6. Step 6: Final answer
    x = 9,698,209.58

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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.