Finding the Fourth Proportional to 72,993,066.65, 100,730,461.99 and 39,953,482.19
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Solution
The fourth proportional to 72,993,066.65, 100,730,461.99 and 39,953,482.19 is: 55,135,821.85
Step by Step Solution
- Step 1: Write the proportion equation
72,993,066.65 : 100,730,461.99 = 39,953,482.19 : x - Step 2: Convert to fraction form
72,993,066.65/100,730,461.99 = 39,953,482.19/x - Step 3: Cross multiply
72,993,066.65x = 100,730,461.99 × 39,953,482.19 - Step 4: Simplify right side
72,993,066.65x = 4,024,532,719,184,172 - Step 5: Solve for x
x = 4,024,532,719,184,172/72,993,066.65 - Step 6: Final answer
x = 55,135,821.85
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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.