Finding the Fourth Proportional to 38,462,305.68, 53,077,984.56 and 21,058,652.16
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Solution
The fourth proportional to 38,462,305.68, 53,077,984.56 and 21,058,652.16 is: 29,060,941.47
Step by Step Solution
- Step 1: Write the proportion equation
38,462,305.68 : 53,077,984.56 = 21,058,652.16 : x - Step 2: Convert to fraction form
38,462,305.68/53,077,984.56 = 21,058,652.16/x - Step 3: Cross multiply
38,462,305.68x = 53,077,984.56 × 21,058,652.16 - Step 4: Simplify right side
38,462,305.68x = 1,117,750,814,202,890.75 - Step 5: Solve for x
x = 1,117,750,814,202,890.75/38,462,305.68 - Step 6: Final answer
x = 29,060,941.47
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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.