Finding the Fourth Proportional to 134,729,970.87, 185,929,781.30 and 79,015,575.13
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Solution
The fourth proportional to 134,729,970.87, 185,929,781.30 and 79,015,575.13 is: 109,042,913.82
Step by Step Solution
- Step 1: Write the proportion equation
134,729,970.87 : 185,929,781.30 = 79,015,575.13 : x - Step 2: Convert to fraction form
134,729,970.87/185,929,781.30 = 79,015,575.13/x - Step 3: Cross multiply
134,729,970.87x = 185,929,781.30 × 79,015,575.13 - Step 4: Simplify right side
134,729,970.87x = 14,691,348,603,214,620 - Step 5: Solve for x
x = 14,691,348,603,214,620/134,729,970.87 - Step 6: Final answer
x = 109,042,913.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.