Home / 72,609,928.10-100,201,702.82-40,014,880.10

Finding the Fourth Proportional to 72,609,928.10, 100,201,702.82 and 40,014,880.10

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Solution

The fourth proportional to 72,609,928.10, 100,201,702.82 and 40,014,880.10 is: 55,220,535.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,609,928.10 : 100,201,702.82 = 40,014,880.10 : x
  2. Step 2: Convert to fraction form
    72,609,928.10/100,201,702.82 = 40,014,880.10/x
  3. Step 3: Cross multiply
    72,609,928.10x = 100,201,702.82 × 40,014,880.10
  4. Step 4: Simplify right side
    72,609,928.10x = 4,009,559,123,457,049
  5. Step 5: Solve for x
    x = 4,009,559,123,457,049/72,609,928.10
  6. Step 6: Final answer
    x = 55,220,535.66

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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.