Home / 376,576,031.70-519,175,686.87-309,342,438.54

Finding the Fourth Proportional to 376,576,031.70, 519,175,686.87 and 309,342,438.54

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Solution

The fourth proportional to 376,576,031.70, 519,175,686.87 and 309,342,438.54 is: 426,482,461.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,576,031.70 : 519,175,686.87 = 309,342,438.54 : x
  2. Step 2: Convert to fraction form
    376,576,031.70/519,175,686.87 = 309,342,438.54/x
  3. Step 3: Cross multiply
    376,576,031.70x = 519,175,686.87 × 309,342,438.54
  4. Step 4: Simplify right side
    376,576,031.70x = 160,603,073,007,045,280
  5. Step 5: Solve for x
    x = 160,603,073,007,045,280/376,576,031.70
  6. Step 6: Final answer
    x = 426,482,461.67

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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.