Home / 672,576,077.80-1,008,864,116.70-309,779,021.80

Finding the Fourth Proportional to 672,576,077.80, 1,008,864,116.70 and 309,779,021.80

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Solution

The fourth proportional to 672,576,077.80, 1,008,864,116.70 and 309,779,021.80 is: 464,668,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,576,077.80 : 1,008,864,116.70 = 309,779,021.80 : x
  2. Step 2: Convert to fraction form
    672,576,077.80/1,008,864,116.70 = 309,779,021.80/x
  3. Step 3: Cross multiply
    672,576,077.80x = 1,008,864,116.70 × 309,779,021.80
  4. Step 4: Simplify right side
    672,576,077.80x = 312,524,939,200,447,040
  5. Step 5: Solve for x
    x = 312,524,939,200,447,040/672,576,077.80
  6. Step 6: Final answer
    x = 464,668,532.70

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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.