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Finding the Fourth Proportional to 380,881,808.70, 534,443,855.70 and 380,881,808.70

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Solution

The fourth proportional to 380,881,808.70, 534,443,855.70 and 380,881,808.70 is: 534,443,855.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,881,808.70 : 534,443,855.70 = 380,881,808.70 : x
  2. Step 2: Convert to fraction form
    380,881,808.70/534,443,855.70 = 380,881,808.70/x
  3. Step 3: Cross multiply
    380,881,808.70x = 534,443,855.70 × 380,881,808.70
  4. Step 4: Simplify right side
    380,881,808.70x = 203,559,942,407,617,792
  5. Step 5: Solve for x
    x = 203,559,942,407,617,792/380,881,808.70
  6. Step 6: Final answer
    x = 534,443,855.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.