Home / 920,936,453.79-1,381,256,319.93-256,967,649.66

Finding the Fourth Proportional to 920,936,453.79, 1,381,256,319.93 and 256,967,649.66

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Solution

The fourth proportional to 920,936,453.79, 1,381,256,319.93 and 256,967,649.66 is: 385,410,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,936,453.79 : 1,381,256,319.93 = 256,967,649.66 : x
  2. Step 2: Convert to fraction form
    920,936,453.79/1,381,256,319.93 = 256,967,649.66/x
  3. Step 3: Cross multiply
    920,936,453.79x = 1,381,256,319.93 × 256,967,649.66
  4. Step 4: Simplify right side
    920,936,453.79x = 354,938,190,103,526,848
  5. Step 5: Solve for x
    x = 354,938,190,103,526,848/920,936,453.79
  6. Step 6: Final answer
    x = 385,410,077.58

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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.