Finding the Fourth Proportional to 19,430,090.90, 29,121,808.35 and 8,064,689.30
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Solution
The fourth proportional to 19,430,090.90, 29,121,808.35 and 8,064,689.30 is: 12,087,351.39
Step by Step Solution
- Step 1: Write the proportion equation
19,430,090.90 : 29,121,808.35 = 8,064,689.30 : x - Step 2: Convert to fraction form
19,430,090.90/29,121,808.35 = 8,064,689.30/x - Step 3: Cross multiply
19,430,090.90x = 29,121,808.35 × 8,064,689.30 - Step 4: Simplify right side
19,430,090.90x = 234,858,336,196,895.66 - Step 5: Solve for x
x = 234,858,336,196,895.66/19,430,090.90 - Step 6: Final answer
x = 12,087,351.39
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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.