Home / 260,554,145.16-390,843,786.62-85,673,307.27

Finding the Fourth Proportional to 260,554,145.16, 390,843,786.62 and 85,673,307.27

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Solution

The fourth proportional to 260,554,145.16, 390,843,786.62 and 85,673,307.27 is: 128,514,093.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,554,145.16 : 390,843,786.62 = 85,673,307.27 : x
  2. Step 2: Convert to fraction form
    260,554,145.16/390,843,786.62 = 85,673,307.27/x
  3. Step 3: Cross multiply
    260,554,145.16x = 390,843,786.62 × 85,673,307.27
  4. Step 4: Simplify right side
    260,554,145.16x = 33,484,879,825,665,572
  5. Step 5: Solve for x
    x = 33,484,879,825,665,572/260,554,145.16
  6. Step 6: Final answer
    x = 128,514,093.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.