Finding the Fourth Proportional to 7,272,487.68, 10,036,102.68 and 4,009,421.76
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Solution
The fourth proportional to 7,272,487.68, 10,036,102.68 and 4,009,421.76 is: 5,533,040.45
Step by Step Solution
- Step 1: Write the proportion equation
7,272,487.68 : 10,036,102.68 = 4,009,421.76 : x - Step 2: Convert to fraction form
7,272,487.68/10,036,102.68 = 4,009,421.76/x - Step 3: Cross multiply
7,272,487.68x = 10,036,102.68 × 4,009,421.76 - Step 4: Simplify right side
7,272,487.68x = 40,238,968,470,786.31 - Step 5: Solve for x
x = 40,238,968,470,786.31/7,272,487.68 - Step 6: Final answer
x = 5,533,040.45
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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.