Finding the Fourth Proportional to 87,406,720.94, 120,620,854.33 and 48,248,155.15
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Solution
The fourth proportional to 87,406,720.94, 120,620,854.33 and 48,248,155.15 is: 66,582,221.95
Step by Step Solution
- Step 1: Write the proportion equation
87,406,720.94 : 120,620,854.33 = 48,248,155.15 : x - Step 2: Convert to fraction form
87,406,720.94/120,620,854.33 = 48,248,155.15/x - Step 3: Cross multiply
87,406,720.94x = 120,620,854.33 × 48,248,155.15 - Step 4: Simplify right side
87,406,720.94x = 5,819,733,693,617,217 - Step 5: Solve for x
x = 5,819,733,693,617,217/87,406,720.94 - Step 6: Final answer
x = 66,582,221.95
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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.