Home / 13,781,807.95-19,018,571.48-7,670,105.23

Finding the Fourth Proportional to 13,781,807.95, 19,018,571.48 and 7,670,105.23

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Solution

The fourth proportional to 13,781,807.95, 19,018,571.48 and 7,670,105.23 is: 10,584,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781,807.95 : 19,018,571.48 = 7,670,105.23 : x
  2. Step 2: Convert to fraction form
    13,781,807.95/19,018,571.48 = 7,670,105.23/x
  3. Step 3: Cross multiply
    13,781,807.95x = 19,018,571.48 × 7,670,105.23
  4. Step 4: Simplify right side
    13,781,807.95x = 145,874,444,480,783.97
  5. Step 5: Solve for x
    x = 145,874,444,480,783.97/13,781,807.95
  6. Step 6: Final answer
    x = 10,584,565.18

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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.