Home / 20,736,020.40-31,104,030.60-19,475,271.60

Finding the Fourth Proportional to 20,736,020.40, 31,104,030.60 and 19,475,271.60

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Solution

The fourth proportional to 20,736,020.40, 31,104,030.60 and 19,475,271.60 is: 29,212,907.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,020.40 : 31,104,030.60 = 19,475,271.60 : x
  2. Step 2: Convert to fraction form
    20,736,020.40/31,104,030.60 = 19,475,271.60/x
  3. Step 3: Cross multiply
    20,736,020.40x = 31,104,030.60 × 19,475,271.60
  4. Step 4: Simplify right side
    20,736,020.40x = 605,759,443,789,711
  5. Step 5: Solve for x
    x = 605,759,443,789,711/20,736,020.40
  6. Step 6: Final answer
    x = 29,212,907.40

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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.