Home / 290,329,856.80-435,494,785.20-263,456,000.80

Finding the Fourth Proportional to 290,329,856.80, 435,494,785.20 and 263,456,000.80

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Solution

The fourth proportional to 290,329,856.80, 435,494,785.20 and 263,456,000.80 is: 395,184,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,329,856.80 : 435,494,785.20 = 263,456,000.80 : x
  2. Step 2: Convert to fraction form
    290,329,856.80/435,494,785.20 = 263,456,000.80/x
  3. Step 3: Cross multiply
    290,329,856.80x = 435,494,785.20 × 263,456,000.80
  4. Step 4: Simplify right side
    290,329,856.80x = 114,733,714,478,047,024
  5. Step 5: Solve for x
    x = 114,733,714,478,047,024/290,329,856.80
  6. Step 6: Final answer
    x = 395,184,001.20

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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.