Finding the Fourth Proportional to 87,265,691.20, 120,427,017.60 and 48,106,607.68
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Solution
The fourth proportional to 87,265,691.20, 120,427,017.60 and 48,106,607.68 is: 66,387,319.12
Step by Step Solution
- Step 1: Write the proportion equation
87,265,691.20 : 120,427,017.60 = 48,106,607.68 : x - Step 2: Convert to fraction form
87,265,691.20/120,427,017.60 = 48,106,607.68/x - Step 3: Cross multiply
87,265,691.20x = 120,427,017.60 × 48,106,607.68 - Step 4: Simplify right side
87,265,691.20x = 5,793,335,289,755,655 - Step 5: Solve for x
x = 5,793,335,289,755,655/87,265,691.20 - Step 6: Final answer
x = 66,387,319.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.