Home / 664,302,606.40-996,453,909.60-197,963,128.90

Finding the Fourth Proportional to 664,302,606.40, 996,453,909.60 and 197,963,128.90

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Solution

The fourth proportional to 664,302,606.40, 996,453,909.60 and 197,963,128.90 is: 296,944,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,302,606.40 : 996,453,909.60 = 197,963,128.90 : x
  2. Step 2: Convert to fraction form
    664,302,606.40/996,453,909.60 = 197,963,128.90/x
  3. Step 3: Cross multiply
    664,302,606.40x = 996,453,909.60 × 197,963,128.90
  4. Step 4: Simplify right side
    664,302,606.40x = 197,261,133,749,053,760
  5. Step 5: Solve for x
    x = 197,261,133,749,053,760/664,302,606.40
  6. Step 6: Final answer
    x = 296,944,693.35

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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.