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Finding the Fourth Proportional to 455,323,812.70, 682,985,719.05 and 455,323,812.70

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Solution

The fourth proportional to 455,323,812.70, 682,985,719.05 and 455,323,812.70 is: 682,985,719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,323,812.70 : 682,985,719.05 = 455,323,812.70 : x
  2. Step 2: Convert to fraction form
    455,323,812.70/682,985,719.05 = 455,323,812.70/x
  3. Step 3: Cross multiply
    455,323,812.70x = 682,985,719.05 × 455,323,812.70
  4. Step 4: Simplify right side
    455,323,812.70x = 310,979,661,617,497,024
  5. Step 5: Solve for x
    x = 310,979,661,617,497,024/455,323,812.70
  6. Step 6: Final answer
    x = 682,985,719.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.