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Finding the Fourth Proportional to 636,564,573.56, 878,137,558.22 and 372,073,768.98

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Solution

The fourth proportional to 636,564,573.56, 878,137,558.22 and 372,073,768.98 is: 513,273,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,564,573.56 : 878,137,558.22 = 372,073,768.98 : x
  2. Step 2: Convert to fraction form
    636,564,573.56/878,137,558.22 = 372,073,768.98/x
  3. Step 3: Cross multiply
    636,564,573.56x = 878,137,558.22 × 372,073,768.98
  4. Step 4: Simplify right side
    636,564,573.56x = 326,731,950,969,809,600
  5. Step 5: Solve for x
    x = 326,731,950,969,809,600/636,564,573.56
  6. Step 6: Final answer
    x = 513,273,852.40

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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.