Home / 666,698,124.92-919,956,162.66-384,450,990.44

Finding the Fourth Proportional to 666,698,124.92, 919,956,162.66 and 384,450,990.44

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Solution

The fourth proportional to 666,698,124.92, 919,956,162.66 and 384,450,990.44 is: 530,492,054.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,698,124.92 : 919,956,162.66 = 384,450,990.44 : x
  2. Step 2: Convert to fraction form
    666,698,124.92/919,956,162.66 = 384,450,990.44/x
  3. Step 3: Cross multiply
    666,698,124.92x = 919,956,162.66 × 384,450,990.44
  4. Step 4: Simplify right side
    666,698,124.92x = 353,678,057,896,018,752
  5. Step 5: Solve for x
    x = 353,678,057,896,018,752/666,698,124.92
  6. Step 6: Final answer
    x = 530,492,054.31

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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.