Home / 395,178,094.71-545,345,235.77-218,977,500.74

Finding the Fourth Proportional to 395,178,094.71, 545,345,235.77 and 218,977,500.74

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Solution

The fourth proportional to 395,178,094.71, 545,345,235.77 and 218,977,500.74 is: 302,188,654.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,178,094.71 : 545,345,235.77 = 218,977,500.74 : x
  2. Step 2: Convert to fraction form
    395,178,094.71/545,345,235.77 = 218,977,500.74/x
  3. Step 3: Cross multiply
    395,178,094.71x = 545,345,235.77 × 218,977,500.74
  4. Step 4: Simplify right side
    395,178,094.71x = 119,418,336,765,559,040
  5. Step 5: Solve for x
    x = 119,418,336,765,559,040/395,178,094.71
  6. Step 6: Final answer
    x = 302,188,654.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.