Finding the Fourth Proportional to 997,178,673.42, 1,376,177,820.03 and 551,132,441.82
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Solution
The fourth proportional to 997,178,673.42, 1,376,177,820.03 and 551,132,441.82 is: 760,602,149.39
Step by Step Solution
- Step 1: Write the proportion equation
997,178,673.42 : 1,376,177,820.03 = 551,132,441.82 : x - Step 2: Convert to fraction form
997,178,673.42/1,376,177,820.03 = 551,132,441.82/x - Step 3: Cross multiply
997,178,673.42x = 1,376,177,820.03 × 551,132,441.82 - Step 4: Simplify right side
997,178,673.42x = 758,456,242,331,658,496 - Step 5: Solve for x
x = 758,456,242,331,658,496/997,178,673.42 - Step 6: Final answer
x = 760,602,149.39
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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.