Home / 417,854,379.20-626,795,519.09-187,824,128.15

Finding the Fourth Proportional to 417,854,379.20, 626,795,519.09 and 187,824,128.15

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Solution

The fourth proportional to 417,854,379.20, 626,795,519.09 and 187,824,128.15 is: 281,742,462.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,854,379.20 : 626,795,519.09 = 187,824,128.15 : x
  2. Step 2: Convert to fraction form
    417,854,379.20/626,795,519.09 = 187,824,128.15/x
  3. Step 3: Cross multiply
    417,854,379.20x = 626,795,519.09 × 187,824,128.15
  4. Step 4: Simplify right side
    417,854,379.20x = 117,727,321,902,033,808
  5. Step 5: Solve for x
    x = 117,727,321,902,033,808/417,854,379.20
  6. Step 6: Final answer
    x = 281,742,462.84

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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.