Finding the Fourth Proportional to 19,854,729.30, 29,750,601.15 and 13,115,270.10
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Solution
The fourth proportional to 19,854,729.30, 29,750,601.15 and 13,115,270.10 is: 19,652,102.22
Step by Step Solution
- Step 1: Write the proportion equation
19,854,729.30 : 29,750,601.15 = 13,115,270.10 : x - Step 2: Convert to fraction form
19,854,729.30/29,750,601.15 = 13,115,270.10/x - Step 3: Cross multiply
19,854,729.30x = 29,750,601.15 × 13,115,270.10 - Step 4: Simplify right side
19,854,729.30x = 390,187,169,719,620.56 - Step 5: Solve for x
x = 390,187,169,719,620.56/19,854,729.30 - Step 6: Final answer
x = 19,652,102.22
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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.