Home / 668,629,500.72-998,441,839.41-546,051,157.86

Finding the Fourth Proportional to 668,629,500.72, 998,441,839.41 and 546,051,157.86

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Solution

The fourth proportional to 668,629,500.72, 998,441,839.41 and 546,051,157.86 is: 815,399,742.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,629,500.72 : 998,441,839.41 = 546,051,157.86 : x
  2. Step 2: Convert to fraction form
    668,629,500.72/998,441,839.41 = 546,051,157.86/x
  3. Step 3: Cross multiply
    668,629,500.72x = 998,441,839.41 × 546,051,157.86
  4. Step 4: Simplify right side
    668,629,500.72x = 545,200,322,465,698,688
  5. Step 5: Solve for x
    x = 545,200,322,465,698,688/668,629,500.72
  6. Step 6: Final answer
    x = 815,399,742.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.