Home / 42,028,772.40-63,054,968.40-20,464,077.60

Finding the Fourth Proportional to 42,028,772.40, 63,054,968.40 and 20,464,077.60

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Solution

The fourth proportional to 42,028,772.40, 63,054,968.40 and 20,464,077.60 is: 30,701,866.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,028,772.40 : 63,054,968.40 = 20,464,077.60 : x
  2. Step 2: Convert to fraction form
    42,028,772.40/63,054,968.40 = 20,464,077.60/x
  3. Step 3: Cross multiply
    42,028,772.40x = 63,054,968.40 × 20,464,077.60
  4. Step 4: Simplify right side
    42,028,772.40x = 1,290,361,766,403,148
  5. Step 5: Solve for x
    x = 1,290,361,766,403,148/42,028,772.40
  6. Step 6: Final answer
    x = 30,701,866.67

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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.