Home / 545,756,768.10-818,635,152.15-200,638,982.70

Finding the Fourth Proportional to 545,756,768.10, 818,635,152.15 and 200,638,982.70

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Solution

The fourth proportional to 545,756,768.10, 818,635,152.15 and 200,638,982.70 is: 300,958,474.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,756,768.10 : 818,635,152.15 = 200,638,982.70 : x
  2. Step 2: Convert to fraction form
    545,756,768.10/818,635,152.15 = 200,638,982.70/x
  3. Step 3: Cross multiply
    545,756,768.10x = 818,635,152.15 × 200,638,982.70
  4. Step 4: Simplify right side
    545,756,768.10x = 164,250,124,129,835,712
  5. Step 5: Solve for x
    x = 164,250,124,129,835,712/545,756,768.10
  6. Step 6: Final answer
    x = 300,958,474.05

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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.