Home / 20,736,018.40-31,104,027.60-19,475,269.60

Finding the Fourth Proportional to 20,736,018.40, 31,104,027.60 and 19,475,269.60

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Solution

The fourth proportional to 20,736,018.40, 31,104,027.60 and 19,475,269.60 is: 29,212,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,018.40 : 31,104,027.60 = 19,475,269.60 : x
  2. Step 2: Convert to fraction form
    20,736,018.40/31,104,027.60 = 19,475,269.60/x
  3. Step 3: Cross multiply
    20,736,018.40x = 31,104,027.60 × 19,475,269.60
  4. Step 4: Simplify right side
    20,736,018.40x = 605,759,323,155,841
  5. Step 5: Solve for x
    x = 605,759,323,155,841/20,736,018.40
  6. Step 6: Final answer
    x = 29,212,904.40

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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.