Finding the Fourth Proportional to 257,366,322.12, 355,165,953.75 and 139,891,354.68
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Solution
The fourth proportional to 257,366,322.12, 355,165,953.75 and 139,891,354.68 is: 193,050,302.76
Step by Step Solution
- Step 1: Write the proportion equation
257,366,322.12 : 355,165,953.75 = 139,891,354.68 : x - Step 2: Convert to fraction form
257,366,322.12/355,165,953.75 = 139,891,354.68/x - Step 3: Cross multiply
257,366,322.12x = 355,165,953.75 × 139,891,354.68 - Step 4: Simplify right side
257,366,322.12x = 49,684,646,406,301,728 - Step 5: Solve for x
x = 49,684,646,406,301,728/257,366,322.12 - Step 6: Final answer
x = 193,050,302.76
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.