Finding the Fourth Proportional to 251,696,387,138.71, 347,341,153,589.91 and 135,953,146,177.76
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Solution
The fourth proportional to 251,696,387,138.71, 347,341,153,589.91 and 135,953,146,177.76 is: 187,615,416,988.63
Step by Step Solution
- Step 1: Write the proportion equation
251,696,387,138.71 : 347,341,153,589.91 = 135,953,146,177.76 : x - Step 2: Convert to fraction form
251,696,387,138.71/347,341,153,589.91 = 135,953,146,177.76/x - Step 3: Cross multiply
251,696,387,138.71x = 347,341,153,589.91 × 135,953,146,177.76 - Step 4: Simplify right side
251,696,387,138.71x = 47,222,122,627,560,812,576,768 - Step 5: Solve for x
x = 47,222,122,627,560,812,576,768/251,696,387,138.71 - Step 6: Final answer
x = 187,615,416,988.63
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1.5x scale
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.