Home / 211,978,035.60-317,967,053.40-196,672,534.80

Finding the Fourth Proportional to 211,978,035.60, 317,967,053.40 and 196,672,534.80

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Solution

The fourth proportional to 211,978,035.60, 317,967,053.40 and 196,672,534.80 is: 295,008,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,978,035.60 : 317,967,053.40 = 196,672,534.80 : x
  2. Step 2: Convert to fraction form
    211,978,035.60/317,967,053.40 = 196,672,534.80/x
  3. Step 3: Cross multiply
    211,978,035.60x = 317,967,053.40 × 196,672,534.80
  4. Step 4: Simplify right side
    211,978,035.60x = 62,535,386,375,064,960
  5. Step 5: Solve for x
    x = 62,535,386,375,064,960/211,978,035.60
  6. Step 6: Final answer
    x = 295,008,802.20

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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.