Home / 20,571,055.94-28,386,972.23-11,748,772.80

Finding the Fourth Proportional to 20,571,055.94, 28,386,972.23 and 11,748,772.80

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Solution

The fourth proportional to 20,571,055.94, 28,386,972.23 and 11,748,772.80 is: 16,212,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571,055.94 : 28,386,972.23 = 11,748,772.80 : x
  2. Step 2: Convert to fraction form
    20,571,055.94/28,386,972.23 = 11,748,772.80/x
  3. Step 3: Cross multiply
    20,571,055.94x = 28,386,972.23 × 11,748,772.80
  4. Step 4: Simplify right side
    20,571,055.94x = 333,512,087,151,435.50
  5. Step 5: Solve for x
    x = 333,512,087,151,435.50/20,571,055.94
  6. Step 6: Final answer
    x = 16,212,686.80

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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.