Finding the Fourth Proportional to 99,853,121.60, 149,779,682.40 and 42,335,604.80
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Solution
The fourth proportional to 99,853,121.60, 149,779,682.40 and 42,335,604.80 is: 63,503,407.20
Step by Step Solution
- Step 1: Write the proportion equation
99,853,121.60 : 149,779,682.40 = 42,335,604.80 : x - Step 2: Convert to fraction form
99,853,121.60/149,779,682.40 = 42,335,604.80/x - Step 3: Cross multiply
99,853,121.60x = 149,779,682.40 × 42,335,604.80 - Step 4: Simplify right side
99,853,121.60x = 6,341,013,441,155,915 - Step 5: Solve for x
x = 6,341,013,441,155,915/99,853,121.60 - Step 6: Final answer
x = 63,503,407.20
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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.