Finding the Fourth Proportional to 18,666,279.63, 27,999,420.12 and 5,887,780.79
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Solution
The fourth proportional to 18,666,279.63, 27,999,420.12 and 5,887,780.79 is: 8,831,671.39
Step by Step Solution
- Step 1: Write the proportion equation
18,666,279.63 : 27,999,420.12 = 5,887,780.79 : x - Step 2: Convert to fraction form
18,666,279.63/27,999,420.12 = 5,887,780.79/x - Step 3: Cross multiply
18,666,279.63x = 27,999,420.12 × 5,887,780.79 - Step 4: Simplify right side
18,666,279.63x = 164,854,447,773,678.41 - Step 5: Solve for x
x = 164,854,447,773,678.41/18,666,279.63 - Step 6: Final answer
x = 8,831,671.39
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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.