Home / 668,779,566.18-1,002,771,986.22-254,286,697.56

Finding the Fourth Proportional to 668,779,566.18, 1,002,771,986.22 and 254,286,697.56

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Solution

The fourth proportional to 668,779,566.18, 1,002,771,986.22 and 254,286,697.56 is: 381,278,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,779,566.18 : 1,002,771,986.22 = 254,286,697.56 : x
  2. Step 2: Convert to fraction form
    668,779,566.18/1,002,771,986.22 = 254,286,697.56/x
  3. Step 3: Cross multiply
    668,779,566.18x = 1,002,771,986.22 × 254,286,697.56
  4. Step 4: Simplify right side
    668,779,566.18x = 254,991,576,781,565,632
  5. Step 5: Solve for x
    x = 254,991,576,781,565,632/668,779,566.18
  6. Step 6: Final answer
    x = 381,278,958.98

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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.