Home / 347,638,427.20-520,701,813.60-211,085,646.40

Finding the Fourth Proportional to 347,638,427.20, 520,701,813.60 and 211,085,646.40

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Solution

The fourth proportional to 347,638,427.20, 520,701,813.60 and 211,085,646.40 is: 316,169,532.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,638,427.20 : 520,701,813.60 = 211,085,646.40 : x
  2. Step 2: Convert to fraction form
    347,638,427.20/520,701,813.60 = 211,085,646.40/x
  3. Step 3: Cross multiply
    347,638,427.20x = 520,701,813.60 × 211,085,646.40
  4. Step 4: Simplify right side
    347,638,427.20x = 109,912,678,905,408,320
  5. Step 5: Solve for x
    x = 109,912,678,905,408,320/347,638,427.20
  6. Step 6: Final answer
    x = 316,169,532.21

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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.