Home / 54,478,145.20-81,749,013-30,237,415.60

Finding the Fourth Proportional to 54,478,145.20, 81,749,013 and 30,237,415.60

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Solution

The fourth proportional to 54,478,145.20, 81,749,013 and 30,237,415.60 is: 45,373,770.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,478,145.20 : 81,749,013 = 30,237,415.60 : x
  2. Step 2: Convert to fraction form
    54,478,145.20/81,749,013 = 30,237,415.60/x
  3. Step 3: Cross multiply
    54,478,145.20x = 81,749,013 × 30,237,415.60
  4. Step 4: Simplify right side
    54,478,145.20x = 2,471,878,880,970,803
  5. Step 5: Solve for x
    x = 2,471,878,880,970,803/54,478,145.20
  6. Step 6: Final answer
    x = 45,373,770.93

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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.