Home / 383,969,192.36-529,877,143.06-216,740,653.16

Finding the Fourth Proportional to 383,969,192.36, 529,877,143.06 and 216,740,653.16

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Solution

The fourth proportional to 383,969,192.36, 529,877,143.06 and 216,740,653.16 is: 299,101,908.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,969,192.36 : 529,877,143.06 = 216,740,653.16 : x
  2. Step 2: Convert to fraction form
    383,969,192.36/529,877,143.06 = 216,740,653.16/x
  3. Step 3: Cross multiply
    383,969,192.36x = 529,877,143.06 × 216,740,653.16
  4. Step 4: Simplify right side
    383,969,192.36x = 114,845,918,081,379,152
  5. Step 5: Solve for x
    x = 114,845,918,081,379,152/383,969,192.36
  6. Step 6: Final answer
    x = 299,101,908.09

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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.