Finding the Fourth Proportional to 7,615,419.90, 10,509,218.21 and 4,130,750.02
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Solution
The fourth proportional to 7,615,419.90, 10,509,218.21 and 4,130,750.02 is: 5,700,401.80
Step by Step Solution
- Step 1: Write the proportion equation
7,615,419.90 : 10,509,218.21 = 4,130,750.02 : x - Step 2: Convert to fraction form
7,615,419.90/10,509,218.21 = 4,130,750.02/x - Step 3: Cross multiply
7,615,419.90x = 10,509,218.21 × 4,130,750.02 - Step 4: Simplify right side
7,615,419.90x = 43,410,953,331,141.87 - Step 5: Solve for x
x = 43,410,953,331,141.87/7,615,419.90 - Step 6: Final answer
x = 5,700,401.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.