Home / 320,482,817.40-480,724,226.10-298,983,732.60

Finding the Fourth Proportional to 320,482,817.40, 480,724,226.10 and 298,983,732.60

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Solution

The fourth proportional to 320,482,817.40, 480,724,226.10 and 298,983,732.60 is: 448,475,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,482,817.40 : 480,724,226.10 = 298,983,732.60 : x
  2. Step 2: Convert to fraction form
    320,482,817.40/480,724,226.10 = 298,983,732.60/x
  3. Step 3: Cross multiply
    320,482,817.40x = 480,724,226.10 × 298,983,732.60
  4. Step 4: Simplify right side
    320,482,817.40x = 143,728,723,470,624,352
  5. Step 5: Solve for x
    x = 143,728,723,470,624,352/320,482,817.40
  6. Step 6: Final answer
    x = 448,475,598.90

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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.