Home / 513,541,011.35-770,809,638.53-247,833,712.67

Finding the Fourth Proportional to 513,541,011.35, 770,809,638.53 and 247,833,712.67

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Solution

The fourth proportional to 513,541,011.35, 770,809,638.53 and 247,833,712.67 is: 371,990,961.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,541,011.35 : 770,809,638.53 = 247,833,712.67 : x
  2. Step 2: Convert to fraction form
    513,541,011.35/770,809,638.53 = 247,833,712.67/x
  3. Step 3: Cross multiply
    513,541,011.35x = 770,809,638.53 × 247,833,712.67
  4. Step 4: Simplify right side
    513,541,011.35x = 191,032,614,473,617,344
  5. Step 5: Solve for x
    x = 191,032,614,473,617,344/513,541,011.35
  6. Step 6: Final answer
    x = 371,990,961.29

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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.