Finding the Fourth Proportional to 74,742,356.44, 112,119,403.92 and 20,154,120.13
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Solution
The fourth proportional to 74,742,356.44, 112,119,403.92 and 20,154,120.13 is: 30,232,762.83
Step by Step Solution
- Step 1: Write the proportion equation
74,742,356.44 : 112,119,403.92 = 20,154,120.13 : x - Step 2: Convert to fraction form
74,742,356.44/112,119,403.92 = 20,154,120.13/x - Step 3: Cross multiply
74,742,356.44x = 112,119,403.92 × 20,154,120.13 - Step 4: Simplify right side
74,742,356.44x = 2,259,667,935,507,673 - Step 5: Solve for x
x = 2,259,667,935,507,673/74,742,356.44 - Step 6: Final answer
x = 30,232,762.83
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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.