Home / 666,698,124.42-919,956,161.97-384,450,989.94

Finding the Fourth Proportional to 666,698,124.42, 919,956,161.97 and 384,450,989.94

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Solution

The fourth proportional to 666,698,124.42, 919,956,161.97 and 384,450,989.94 is: 530,492,053.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,698,124.42 : 919,956,161.97 = 384,450,989.94 : x
  2. Step 2: Convert to fraction form
    666,698,124.42/919,956,161.97 = 384,450,989.94/x
  3. Step 3: Cross multiply
    666,698,124.42x = 919,956,161.97 × 384,450,989.94
  4. Step 4: Simplify right side
    666,698,124.42x = 353,678,057,170,769,472
  5. Step 5: Solve for x
    x = 353,678,057,170,769,472/666,698,124.42
  6. Step 6: Final answer
    x = 530,492,053.62

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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.