Home / 1,399,603,885.72-1,931,459,938.22-764,533,172.54

Finding the Fourth Proportional to 1,399,603,885.72, 1,931,459,938.22 and 764,533,172.54

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Solution

The fourth proportional to 1,399,603,885.72, 1,931,459,938.22 and 764,533,172.54 is: 1,055,059,370.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,603,885.72 : 1,931,459,938.22 = 764,533,172.54 : x
  2. Step 2: Convert to fraction form
    1,399,603,885.72/1,931,459,938.22 = 764,533,172.54/x
  3. Step 3: Cross multiply
    1,399,603,885.72x = 1,931,459,938.22 × 764,533,172.54
  4. Step 4: Simplify right side
    1,399,603,885.72x = 1,476,665,194,208,065,536
  5. Step 5: Solve for x
    x = 1,476,665,194,208,065,536/1,399,603,885.72
  6. Step 6: Final answer
    x = 1,055,059,370.21

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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.