Finding the Fourth Proportional to 5,272,208,747.47, 7,275,167,182.16 and 3,128,445,988.98
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Solution
The fourth proportional to 5,272,208,747.47, 7,275,167,182.16 and 3,128,445,988.98 is: 4,316,970,112.58
Step by Step Solution
- Step 1: Write the proportion equation
5,272,208,747.47 : 7,275,167,182.16 = 3,128,445,988.98 : x - Step 2: Convert to fraction form
5,272,208,747.47/7,275,167,182.16 = 3,128,445,988.98/x - Step 3: Cross multiply
5,272,208,747.47x = 7,275,167,182.16 × 3,128,445,988.98 - Step 4: Simplify right side
5,272,208,747.47x = 22,759,967,590,135,361,536 - Step 5: Solve for x
x = 22,759,967,590,135,361,536/5,272,208,747.47 - Step 6: Final answer
x = 4,316,970,112.58
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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.