Home / 20,571,055.32-28,386,971.37-11,748,772.17

Finding the Fourth Proportional to 20,571,055.32, 28,386,971.37 and 11,748,772.17

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Solution

The fourth proportional to 20,571,055.32, 28,386,971.37 and 11,748,772.17 is: 16,212,685.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571,055.32 : 28,386,971.37 = 11,748,772.17 : x
  2. Step 2: Convert to fraction form
    20,571,055.32/28,386,971.37 = 11,748,772.17/x
  3. Step 3: Cross multiply
    20,571,055.32x = 28,386,971.37 × 11,748,772.17
  4. Step 4: Simplify right side
    20,571,055.32x = 333,512,059,222,442.81
  5. Step 5: Solve for x
    x = 333,512,059,222,442.81/20,571,055.32
  6. Step 6: Final answer
    x = 16,212,685.93

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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.