Finding the Fourth Proportional to 210,939,938,837.01, 291,122,071,018.64 and 125,301,242,930.31
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Solution
The fourth proportional to 210,939,938,837.01, 291,122,071,018.64 and 125,301,242,930.31 is: 172,930,539,110.79
Step by Step Solution
- Step 1: Write the proportion equation
210,939,938,837.01 : 291,122,071,018.64 = 125,301,242,930.31 : x - Step 2: Convert to fraction form
210,939,938,837.01/291,122,071,018.64 = 125,301,242,930.31/x - Step 3: Cross multiply
210,939,938,837.01x = 291,122,071,018.64 × 125,301,242,930.31 - Step 4: Simplify right side
210,939,938,837.01x = 36,477,957,343,081,570,238,464 - Step 5: Solve for x
x = 36,477,957,343,081,570,238,464/210,939,938,837.01 - Step 6: Final answer
x = 172,930,539,110.79
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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.