Home / 78,735,350.40-118,103,025.60-73,952,381.40

Finding the Fourth Proportional to 78,735,350.40, 118,103,025.60 and 73,952,381.40

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Solution

The fourth proportional to 78,735,350.40, 118,103,025.60 and 73,952,381.40 is: 110,928,572.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,735,350.40 : 118,103,025.60 = 73,952,381.40 : x
  2. Step 2: Convert to fraction form
    78,735,350.40/118,103,025.60 = 73,952,381.40/x
  3. Step 3: Cross multiply
    78,735,350.40x = 118,103,025.60 × 73,952,381.40
  4. Step 4: Simplify right side
    78,735,350.40x = 8,733,999,993,665,164
  5. Step 5: Solve for x
    x = 8,733,999,993,665,164/78,735,350.40
  6. Step 6: Final answer
    x = 110,928,572.10

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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.