Home / 628,111,361.62-865,197,384.43-479,173,911.01

Finding the Fourth Proportional to 628,111,361.62, 865,197,384.43 and 479,173,911.01

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Solution

The fourth proportional to 628,111,361.62, 865,197,384.43 and 479,173,911.01 is: 660,042,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,111,361.62 : 865,197,384.43 = 479,173,911.01 : x
  2. Step 2: Convert to fraction form
    628,111,361.62/865,197,384.43 = 479,173,911.01/x
  3. Step 3: Cross multiply
    628,111,361.62x = 865,197,384.43 × 479,173,911.01
  4. Step 4: Simplify right side
    628,111,361.62x = 414,580,014,492,945,536
  5. Step 5: Solve for x
    x = 414,580,014,492,945,536/628,111,361.62
  6. Step 6: Final answer
    x = 660,042,215.16

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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.