Home / 666,136,221.68-919,364,141.58-383,824,593.20

Finding the Fourth Proportional to 666,136,221.68, 919,364,141.58 and 383,824,593.20

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Solution

The fourth proportional to 666,136,221.68, 919,364,141.58 and 383,824,593.20 is: 529,733,343.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,136,221.68 : 919,364,141.58 = 383,824,593.20 : x
  2. Step 2: Convert to fraction form
    666,136,221.68/919,364,141.58 = 383,824,593.20/x
  3. Step 3: Cross multiply
    666,136,221.68x = 919,364,141.58 × 383,824,593.20
  4. Step 4: Simplify right side
    666,136,221.68x = 352,874,567,644,610,688
  5. Step 5: Solve for x
    x = 352,874,567,644,610,688/666,136,221.68
  6. Step 6: Final answer
    x = 529,733,343.06

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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.