Home / 519,576,658.80-717,010,077-281,415,918.66

Finding the Fourth Proportional to 519,576,658.80, 717,010,077 and 281,415,918.66

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Solution

The fourth proportional to 519,576,658.80, 717,010,077 and 281,415,918.66 is: 388,350,873.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,576,658.80 : 717,010,077 = 281,415,918.66 : x
  2. Step 2: Convert to fraction form
    519,576,658.80/717,010,077 = 281,415,918.66/x
  3. Step 3: Cross multiply
    519,576,658.80x = 717,010,077 × 281,415,918.66
  4. Step 4: Simplify right side
    519,576,658.80x = 201,778,049,507,432,352
  5. Step 5: Solve for x
    x = 201,778,049,507,432,352/519,576,658.80
  6. Step 6: Final answer
    x = 388,350,873.91

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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.