Home / 764,214,195.78-1,054,283,650.83-485,606,250.90

Finding the Fourth Proportional to 764,214,195.78, 1,054,283,650.83 and 485,606,250.90

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Solution

The fourth proportional to 764,214,195.78, 1,054,283,650.83 and 485,606,250.90 is: 669,925,701.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,214,195.78 : 1,054,283,650.83 = 485,606,250.90 : x
  2. Step 2: Convert to fraction form
    764,214,195.78/1,054,283,650.83 = 485,606,250.90/x
  3. Step 3: Cross multiply
    764,214,195.78x = 1,054,283,650.83 × 485,606,250.90
  4. Step 4: Simplify right side
    764,214,195.78x = 511,966,731,064,720,960
  5. Step 5: Solve for x
    x = 511,966,731,064,720,960/764,214,195.78
  6. Step 6: Final answer
    x = 669,925,701.32

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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.