Finding the Fourth Proportional to 257,813,013.71, 355,104,220.93 and 198,160,235.26
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Solution
The fourth proportional to 257,813,013.71, 355,104,220.93 and 198,160,235.26 is: 272,940,201.69
Step by Step Solution
- Step 1: Write the proportion equation
257,813,013.71 : 355,104,220.93 = 198,160,235.26 : x - Step 2: Convert to fraction form
257,813,013.71/355,104,220.93 = 198,160,235.26/x - Step 3: Cross multiply
257,813,013.71x = 355,104,220.93 × 198,160,235.26 - Step 4: Simplify right side
257,813,013.71x = 70,367,535,959,920,688 - Step 5: Solve for x
x = 70,367,535,959,920,688/257,813,013.71 - Step 6: Final answer
x = 272,940,201.69
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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.