Home / 209,125,571,785.05-313,831,646,110.80-72,987,696,216.56

Finding the Fourth Proportional to 209,125,571,785.05, 313,831,646,110.80 and 72,987,696,216.56

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Solution

The fourth proportional to 209,125,571,785.05, 313,831,646,110.80 and 72,987,696,216.56 is: 109,531,553,955.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,125,571,785.05 : 313,831,646,110.80 = 72,987,696,216.56 : x
  2. Step 2: Convert to fraction form
    209,125,571,785.05/313,831,646,110.80 = 72,987,696,216.56/x
  3. Step 3: Cross multiply
    209,125,571,785.05x = 313,831,646,110.80 × 72,987,696,216.56
  4. Step 4: Simplify right side
    209,125,571,785.05x = 22,905,848,849,478,658,818,048
  5. Step 5: Solve for x
    x = 22,905,848,849,478,658,818,048/209,125,571,785.05
  6. Step 6: Final answer
    x = 109,531,553,955.64

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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.