Finding the Fourth Proportional to 18,698,197.07, 28,056,177.99 and 12,949,776.92
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Solution
The fourth proportional to 18,698,197.07, 28,056,177.99 and 12,949,776.92 is: 19,430,817.04
Step by Step Solution
- Step 1: Write the proportion equation
18,698,197.07 : 28,056,177.99 = 12,949,776.92 : x - Step 2: Convert to fraction form
18,698,197.07/28,056,177.99 = 12,949,776.92/x - Step 3: Cross multiply
18,698,197.07x = 28,056,177.99 × 12,949,776.92 - Step 4: Simplify right side
18,698,197.07x = 363,321,246,058,033.06 - Step 5: Solve for x
x = 363,321,246,058,033.06/18,698,197.07 - Step 6: Final answer
x = 19,430,817.04
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.