Finding the Fourth Proportional to 257,366,326.12, 355,165,959.27 and 139,891,358.68
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Solution
The fourth proportional to 257,366,326.12, 355,165,959.27 and 139,891,358.68 is: 193,050,308.28
Step by Step Solution
- Step 1: Write the proportion equation
257,366,326.12 : 355,165,959.27 = 139,891,358.68 : x - Step 2: Convert to fraction form
257,366,326.12/355,165,959.27 = 139,891,358.68/x - Step 3: Cross multiply
257,366,326.12x = 355,165,959.27 × 139,891,358.68 - Step 4: Simplify right side
257,366,326.12x = 49,684,648,599,165,840 - Step 5: Solve for x
x = 49,684,648,599,165,840/257,366,326.12 - Step 6: Final answer
x = 193,050,308.28
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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.