Finding the Fourth Proportional to 19,778,438.16, 27,292,945.44 and 11,074,615.56
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Solution
The fourth proportional to 19,778,438.16, 27,292,945.44 and 11,074,615.56 is: 15,282,242.00
Step by Step Solution
- Step 1: Write the proportion equation
19,778,438.16 : 27,292,945.44 = 11,074,615.56 : x - Step 2: Convert to fraction form
19,778,438.16/27,292,945.44 = 11,074,615.56/x - Step 3: Cross multiply
19,778,438.16x = 27,292,945.44 × 11,074,615.56 - Step 4: Simplify right side
19,778,438.16x = 302,258,878,248,055.06 - Step 5: Solve for x
x = 302,258,878,248,055.06/19,778,438.16 - Step 6: Final answer
x = 15,282,242.00
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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.