Home / 19,128,040.47-28,675,072.80-7,453,708.92

Finding the Fourth Proportional to 19,128,040.47, 28,675,072.80 and 7,453,708.92

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Solution

The fourth proportional to 19,128,040.47, 28,675,072.80 and 7,453,708.92 is: 11,173,943.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128,040.47 : 28,675,072.80 = 7,453,708.92 : x
  2. Step 2: Convert to fraction form
    19,128,040.47/28,675,072.80 = 7,453,708.92/x
  3. Step 3: Cross multiply
    19,128,040.47x = 28,675,072.80 × 7,453,708.92
  4. Step 4: Simplify right side
    19,128,040.47x = 213,735,645,911,009.38
  5. Step 5: Solve for x
    x = 213,735,645,911,009.38/19,128,040.47
  6. Step 6: Final answer
    x = 11,173,943.63

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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.