Finding the Fourth Proportional to 197,708,612.64, 296,612,315.16 and 139,529,886.36
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Solution
The fourth proportional to 197,708,612.64, 296,612,315.16 and 139,529,886.36 is: 209,329,690.17
Step by Step Solution
- Step 1: Write the proportion equation
197,708,612.64 : 296,612,315.16 = 139,529,886.36 : x - Step 2: Convert to fraction form
197,708,612.64/296,612,315.16 = 139,529,886.36/x - Step 3: Cross multiply
197,708,612.64x = 296,612,315.16 × 139,529,886.36 - Step 4: Simplify right side
197,708,612.64x = 41,386,282,627,251,312 - Step 5: Solve for x
x = 41,386,282,627,251,312/197,708,612.64 - Step 6: Final answer
x = 209,329,690.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.