Finding the Fourth Proportional to 130,507,480.49, 180,105,058.16 and 74,763,674.42
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Solution
The fourth proportional to 130,507,480.49, 180,105,058.16 and 74,763,674.42 is: 103,176,583.28
Step by Step Solution
- Step 1: Write the proportion equation
130,507,480.49 : 180,105,058.16 = 74,763,674.42 : x - Step 2: Convert to fraction form
130,507,480.49/180,105,058.16 = 74,763,674.42/x - Step 3: Cross multiply
130,507,480.49x = 180,105,058.16 × 74,763,674.42 - Step 4: Simplify right side
130,507,480.49x = 13,465,315,928,395,062 - Step 5: Solve for x
x = 13,465,315,928,395,062/130,507,480.49 - Step 6: Final answer
x = 103,176,583.28
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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.