Finding the Fourth Proportional to 7,128,340.79, 10,688,973.69 and 2,270,014.16
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Solution
The fourth proportional to 7,128,340.79, 10,688,973.69 and 2,270,014.16 is: 3,403,894.73
Step by Step Solution
- Step 1: Write the proportion equation
7,128,340.79 : 10,688,973.69 = 2,270,014.16 : x - Step 2: Convert to fraction form
7,128,340.79/10,688,973.69 = 2,270,014.16/x - Step 3: Cross multiply
7,128,340.79x = 10,688,973.69 × 2,270,014.16 - Step 4: Simplify right side
7,128,340.79x = 24,264,121,632,167.45 - Step 5: Solve for x
x = 24,264,121,632,167.45/7,128,340.79 - Step 6: Final answer
x = 3,403,894.73
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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.