Home / 347,638,428.20-520,701,815.10-211,085,647.40

Finding the Fourth Proportional to 347,638,428.20, 520,701,815.10 and 211,085,647.40

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Solution

The fourth proportional to 347,638,428.20, 520,701,815.10 and 211,085,647.40 is: 316,169,533.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,638,428.20 : 520,701,815.10 = 211,085,647.40 : x
  2. Step 2: Convert to fraction form
    347,638,428.20/520,701,815.10 = 211,085,647.40/x
  3. Step 3: Cross multiply
    347,638,428.20x = 520,701,815.10 × 211,085,647.40
  4. Step 4: Simplify right side
    347,638,428.20x = 109,912,679,742,738,608
  5. Step 5: Solve for x
    x = 109,912,679,742,738,608/347,638,428.20
  6. Step 6: Final answer
    x = 316,169,533.71

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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.