Finding the Fourth Proportional to 54,161,574.01, 74,742,972.12 and 30,957,199.19
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Solution
The fourth proportional to 54,161,574.01, 74,742,972.12 and 30,957,199.19 is: 42,720,934.87
Step by Step Solution
- Step 1: Write the proportion equation
54,161,574.01 : 74,742,972.12 = 30,957,199.19 : x - Step 2: Convert to fraction form
54,161,574.01/74,742,972.12 = 30,957,199.19/x - Step 3: Cross multiply
54,161,574.01x = 74,742,972.12 × 30,957,199.19 - Step 4: Simplify right side
54,161,574.01x = 2,313,833,075,971,457 - Step 5: Solve for x
x = 2,313,833,075,971,457/54,161,574.01 - Step 6: Final answer
x = 42,720,934.87
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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.