Home / 256,244,612.70-384,980,108.79-164,308,474.45

Finding the Fourth Proportional to 256,244,612.70, 384,980,108.79 and 164,308,474.45

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Solution

The fourth proportional to 256,244,612.70, 384,980,108.79 and 164,308,474.45 is: 246,855,899.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,244,612.70 : 384,980,108.79 = 164,308,474.45 : x
  2. Step 2: Convert to fraction form
    256,244,612.70/384,980,108.79 = 164,308,474.45/x
  3. Step 3: Cross multiply
    256,244,612.70x = 384,980,108.79 × 164,308,474.45
  4. Step 4: Simplify right side
    256,244,612.70x = 63,255,494,369,977,312
  5. Step 5: Solve for x
    x = 63,255,494,369,977,312/256,244,612.70
  6. Step 6: Final answer
    x = 246,855,899.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.