Home / 739,438,421.80-1,020,456,908.42-409,413,589.96

Finding the Fourth Proportional to 739,438,421.80, 1,020,456,908.42 and 409,413,589.96

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Solution

The fourth proportional to 739,438,421.80, 1,020,456,908.42 and 409,413,589.96 is: 565,008,409.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,438,421.80 : 1,020,456,908.42 = 409,413,589.96 : x
  2. Step 2: Convert to fraction form
    739,438,421.80/1,020,456,908.42 = 409,413,589.96/x
  3. Step 3: Cross multiply
    739,438,421.80x = 1,020,456,908.42 × 409,413,589.96
  4. Step 4: Simplify right side
    739,438,421.80x = 417,788,926,275,715,136
  5. Step 5: Solve for x
    x = 417,788,926,275,715,136/739,438,421.80
  6. Step 6: Final answer
    x = 565,008,409.03

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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.