Finding the Fourth Proportional to 259,081,378.24, 388,564,742.40 and 74,808,855.40
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Solution
The fourth proportional to 259,081,378.24, 388,564,742.40 and 74,808,855.40 is: 112,196,730.72
Step by Step Solution
- Step 1: Write the proportion equation
259,081,378.24 : 388,564,742.40 = 74,808,855.40 : x - Step 2: Convert to fraction form
259,081,378.24/388,564,742.40 = 74,808,855.40/x - Step 3: Cross multiply
259,081,378.24x = 388,564,742.40 × 74,808,855.40 - Step 4: Simplify right side
259,081,378.24x = 29,068,083,627,739,848 - Step 5: Solve for x
x = 29,068,083,627,739,848/259,081,378.24 - Step 6: Final answer
x = 112,196,730.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.