Home / 768,664,672.20-1,152,997,008.30-354,140,692.20

Finding the Fourth Proportional to 768,664,672.20, 1,152,997,008.30 and 354,140,692.20

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Solution

The fourth proportional to 768,664,672.20, 1,152,997,008.30 and 354,140,692.20 is: 531,211,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,664,672.20 : 1,152,997,008.30 = 354,140,692.20 : x
  2. Step 2: Convert to fraction form
    768,664,672.20/1,152,997,008.30 = 354,140,692.20/x
  3. Step 3: Cross multiply
    768,664,672.20x = 1,152,997,008.30 × 354,140,692.20
  4. Step 4: Simplify right side
    768,664,672.20x = 408,323,158,623,891,136
  5. Step 5: Solve for x
    x = 408,323,158,623,891,136/768,664,672.20
  6. Step 6: Final answer
    x = 531,211,038.30

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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.