Home / 620,593,200.90-930,889,801.35-211,662,692.10

Finding the Fourth Proportional to 620,593,200.90, 930,889,801.35 and 211,662,692.10

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Solution

The fourth proportional to 620,593,200.90, 930,889,801.35 and 211,662,692.10 is: 317,494,038.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,593,200.90 : 930,889,801.35 = 211,662,692.10 : x
  2. Step 2: Convert to fraction form
    620,593,200.90/930,889,801.35 = 211,662,692.10/x
  3. Step 3: Cross multiply
    620,593,200.90x = 930,889,801.35 × 211,662,692.10
  4. Step 4: Simplify right side
    620,593,200.90x = 197,034,641,402,175,200
  5. Step 5: Solve for x
    x = 197,034,641,402,175,200/620,593,200.90
  6. Step 6: Final answer
    x = 317,494,038.15

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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.