Finding the Fourth Proportional to 19,998,746.84, 29,991,928.98 and 7,217,633.72
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Solution
The fourth proportional to 19,998,746.84, 29,991,928.98 and 7,217,633.72 is: 10,824,216.12
Step by Step Solution
- Step 1: Write the proportion equation
19,998,746.84 : 29,991,928.98 = 7,217,633.72 : x - Step 2: Convert to fraction form
19,998,746.84/29,991,928.98 = 7,217,633.72/x - Step 3: Cross multiply
19,998,746.84x = 29,991,928.98 × 7,217,633.72 - Step 4: Simplify right side
19,998,746.84x = 216,470,757,933,893.19 - Step 5: Solve for x
x = 216,470,757,933,893.19/19,998,746.84 - Step 6: Final answer
x = 10,824,216.12
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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.