Home / 295,920,018.40-443,908,021.20-80,509,266.40

Finding the Fourth Proportional to 295,920,018.40, 443,908,021.20 and 80,509,266.40

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Solution

The fourth proportional to 295,920,018.40, 443,908,021.20 and 80,509,266.40 is: 120,771,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,920,018.40 : 443,908,021.20 = 80,509,266.40 : x
  2. Step 2: Convert to fraction form
    295,920,018.40/443,908,021.20 = 80,509,266.40/x
  3. Step 3: Cross multiply
    295,920,018.40x = 443,908,021.20 × 80,509,266.40
  4. Step 4: Simplify right side
    295,920,018.40x = 35,738,709,135,887,648
  5. Step 5: Solve for x
    x = 35,738,709,135,887,648/295,920,018.40
  6. Step 6: Final answer
    x = 120,771,515.66

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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.