Finding the Fourth Proportional to 18,129,875.23, 27,191,860.35 and 7,346,740.51
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Solution
The fourth proportional to 18,129,875.23, 27,191,860.35 and 7,346,740.51 is: 11,018,914.33
Step by Step Solution
- Step 1: Write the proportion equation
18,129,875.23 : 27,191,860.35 = 7,346,740.51 : x - Step 2: Convert to fraction form
18,129,875.23/27,191,860.35 = 7,346,740.51/x - Step 3: Cross multiply
18,129,875.23x = 27,191,860.35 × 7,346,740.51 - Step 4: Simplify right side
18,129,875.23x = 199,771,541,975,607.78 - Step 5: Solve for x
x = 199,771,541,975,607.78/18,129,875.23 - Step 6: Final answer
x = 11,018,914.33
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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.