Finding the Fourth Proportional to 468,471,153.08, 646,490,209.74 and 259,658,685.56
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Solution
The fourth proportional to 468,471,153.08, 646,490,209.74 and 259,658,685.56 is: 358,328,996.32
Step by Step Solution
- Step 1: Write the proportion equation
468,471,153.08 : 646,490,209.74 = 259,658,685.56 : x - Step 2: Convert to fraction form
468,471,153.08/646,490,209.74 = 259,658,685.56/x - Step 3: Cross multiply
468,471,153.08x = 646,490,209.74 × 259,658,685.56 - Step 4: Simplify right side
468,471,153.08x = 167,866,798,088,497,120 - Step 5: Solve for x
x = 167,866,798,088,497,120/468,471,153.08 - Step 6: Final answer
x = 358,328,996.32
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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.