Home / 390,141,136.36-584,802,048.60-131,266,482.64

Finding the Fourth Proportional to 390,141,136.36, 584,802,048.60 and 131,266,482.64

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Solution

The fourth proportional to 390,141,136.36, 584,802,048.60 and 131,266,482.64 is: 196,761,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,141,136.36 : 584,802,048.60 = 131,266,482.64 : x
  2. Step 2: Convert to fraction form
    390,141,136.36/584,802,048.60 = 131,266,482.64/x
  3. Step 3: Cross multiply
    390,141,136.36x = 584,802,048.60 × 131,266,482.64
  4. Step 4: Simplify right side
    390,141,136.36x = 76,764,907,960,388,336
  5. Step 5: Solve for x
    x = 76,764,907,960,388,336/390,141,136.36
  6. Step 6: Final answer
    x = 196,761,891.55

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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.