Finding the Fourth Proportional to 781,662,239.06, 1,172,531,068.07 and 257,019,725.75
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Solution
The fourth proportional to 781,662,239.06, 1,172,531,068.07 and 257,019,725.75 is: 385,541,987.94
Step by Step Solution
- Step 1: Write the proportion equation
781,662,239.06 : 1,172,531,068.07 = 257,019,725.75 : x - Step 2: Convert to fraction form
781,662,239.06/1,172,531,068.07 = 257,019,725.75/x - Step 3: Cross multiply
781,662,239.06x = 1,172,531,068.07 × 257,019,725.75 - Step 4: Simplify right side
781,662,239.06x = 301,363,613,541,558,272 - Step 5: Solve for x
x = 301,363,613,541,558,272/781,662,239.06 - Step 6: Final answer
x = 385,541,987.94
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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.