Home / 665,747,956.86-918,801,334.23-383,500,152.06

Finding the Fourth Proportional to 665,747,956.86, 918,801,334.23 and 383,500,152.06

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Solution

The fourth proportional to 665,747,956.86, 918,801,334.23 and 383,500,152.06 is: 529,270,045.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,747,956.86 : 918,801,334.23 = 383,500,152.06 : x
  2. Step 2: Convert to fraction form
    665,747,956.86/918,801,334.23 = 383,500,152.06/x
  3. Step 3: Cross multiply
    665,747,956.86x = 918,801,334.23 × 383,500,152.06
  4. Step 4: Simplify right side
    665,747,956.86x = 352,360,451,390,135,872
  5. Step 5: Solve for x
    x = 352,360,451,390,135,872/665,747,956.86
  6. Step 6: Final answer
    x = 529,270,045.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.