Finding the Fourth Proportional to 7,128,838.96, 10,688,988.12 and 2,269,046.32
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Solution
The fourth proportional to 7,128,838.96, 10,688,988.12 and 2,269,046.32 is: 3,402,210.27
Step by Step Solution
- Step 1: Write the proportion equation
7,128,838.96 : 10,688,988.12 = 2,269,046.32 : x - Step 2: Convert to fraction form
7,128,838.96/10,688,988.12 = 2,269,046.32/x - Step 3: Cross multiply
7,128,838.96x = 10,688,988.12 × 2,269,046.32 - Step 4: Simplify right side
7,128,838.96x = 24,253,809,158,209.71 - Step 5: Solve for x
x = 24,253,809,158,209.71/7,128,838.96 - Step 6: Final answer
x = 3,402,210.27
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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.