Finding the Fourth Proportional to 19,785,651.30, 29,677,492.80 and 10,201,998.60
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Solution
The fourth proportional to 19,785,651.30, 29,677,492.80 and 10,201,998.60 is: 15,302,490.45
Step by Step Solution
- Step 1: Write the proportion equation
19,785,651.30 : 29,677,492.80 = 10,201,998.60 : x - Step 2: Convert to fraction form
19,785,651.30/29,677,492.80 = 10,201,998.60/x - Step 3: Cross multiply
19,785,651.30x = 29,677,492.80 × 10,201,998.60 - Step 4: Simplify right side
19,785,651.30x = 302,769,739,997,110.06 - Step 5: Solve for x
x = 302,769,739,997,110.06/19,785,651.30 - Step 6: Final answer
x = 15,302,490.45
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1.5x scale
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.