Finding the Fourth Proportional to 19,905,101.60, 29,857,652.40 and 8,543,616.80
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Solution
The fourth proportional to 19,905,101.60, 29,857,652.40 and 8,543,616.80 is: 12,815,425.20
Step by Step Solution
- Step 1: Write the proportion equation
19,905,101.60 : 29,857,652.40 = 8,543,616.80 : x - Step 2: Convert to fraction form
19,905,101.60/29,857,652.40 = 8,543,616.80/x - Step 3: Cross multiply
19,905,101.60x = 29,857,652.40 × 8,543,616.80 - Step 4: Simplify right side
19,905,101.60x = 255,092,340,653,200.34 - Step 5: Solve for x
x = 255,092,340,653,200.34/19,905,101.60 - Step 6: Final answer
x = 12,815,425.20
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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.