Home / 21,065,903.96-31,607,983.89-7,428,794.36

Finding the Fourth Proportional to 21,065,903.96, 31,607,983.89 and 7,428,794.36

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Solution

The fourth proportional to 21,065,903.96, 31,607,983.89 and 7,428,794.36 is: 11,146,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065,903.96 : 31,607,983.89 = 7,428,794.36 : x
  2. Step 2: Convert to fraction form
    21,065,903.96/31,607,983.89 = 7,428,794.36/x
  3. Step 3: Cross multiply
    21,065,903.96x = 31,607,983.89 × 7,428,794.36
  4. Step 4: Simplify right side
    21,065,903.96x = 234,809,212,294,962.97
  5. Step 5: Solve for x
    x = 234,809,212,294,962.97/21,065,903.96
  6. Step 6: Final answer
    x = 11,146,410.46

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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.