Finding the Fourth Proportional to 13,127,289.94, 18,117,486 and 7,326,445.35
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Solution
The fourth proportional to 13,127,289.94, 18,117,486 and 7,326,445.35 is: 10,111,513.62
Step by Step Solution
- Step 1: Write the proportion equation
13,127,289.94 : 18,117,486 = 7,326,445.35 : x - Step 2: Convert to fraction form
13,127,289.94/18,117,486 = 7,326,445.35/x - Step 3: Cross multiply
13,127,289.94x = 18,117,486 × 7,326,445.35 - Step 4: Simplify right side
13,127,289.94x = 132,736,771,058,390.09 - Step 5: Solve for x
x = 132,736,771,058,390.09/13,127,289.94 - Step 6: Final answer
x = 10,111,513.62
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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.