Home / 74,908,811.75-112,363,217.63-21,056,123.75

Finding the Fourth Proportional to 74,908,811.75, 112,363,217.63 and 21,056,123.75

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Solution

The fourth proportional to 74,908,811.75, 112,363,217.63 and 21,056,123.75 is: 31,584,185.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,908,811.75 : 112,363,217.63 = 21,056,123.75 : x
  2. Step 2: Convert to fraction form
    74,908,811.75/112,363,217.63 = 21,056,123.75/x
  3. Step 3: Cross multiply
    74,908,811.75x = 112,363,217.63 × 21,056,123.75
  4. Step 4: Simplify right side
    74,908,811.75x = 2,365,933,815,365,461.50
  5. Step 5: Solve for x
    x = 2,365,933,815,365,461.50/74,908,811.75
  6. Step 6: Final answer
    x = 31,584,185.63

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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.