Home / 42,771,945.58-64,163,296.77-20,913,055.54

Finding the Fourth Proportional to 42,771,945.58, 64,163,296.77 and 20,913,055.54

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Solution

The fourth proportional to 42,771,945.58, 64,163,296.77 and 20,913,055.54 is: 31,372,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,771,945.58 : 64,163,296.77 = 20,913,055.54 : x
  2. Step 2: Convert to fraction form
    42,771,945.58/64,163,296.77 = 20,913,055.54/x
  3. Step 3: Cross multiply
    42,771,945.58x = 64,163,296.77 × 20,913,055.54
  4. Step 4: Simplify right side
    42,771,945.58x = 1,341,850,588,980,512.50
  5. Step 5: Solve for x
    x = 1,341,850,588,980,512.50/42,771,945.58
  6. Step 6: Final answer
    x = 31,372,213.04

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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.