Home / 28,334,321.60-42,548,721.60-18,792,003.20

Finding the Fourth Proportional to 28,334,321.60, 42,548,721.60 and 18,792,003.20

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Solution

The fourth proportional to 28,334,321.60, 42,548,721.60 and 18,792,003.20 is: 28,219,334.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,334,321.60 : 42,548,721.60 = 18,792,003.20 : x
  2. Step 2: Convert to fraction form
    28,334,321.60/42,548,721.60 = 18,792,003.20/x
  3. Step 3: Cross multiply
    28,334,321.60x = 42,548,721.60 × 18,792,003.20
  4. Step 4: Simplify right side
    28,334,321.60x = 799,575,712,463,109.12
  5. Step 5: Solve for x
    x = 799,575,712,463,109.12/28,334,321.60
  6. Step 6: Final answer
    x = 28,219,334.97

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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.