Finding the Fourth Proportional to 98,355,268.08, 135,730,460.97 and 54,302,352.12
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Solution
The fourth proportional to 98,355,268.08, 135,730,460.97 and 54,302,352.12 is: 74,937,351.39
Step by Step Solution
- Step 1: Write the proportion equation
98,355,268.08 : 135,730,460.97 = 54,302,352.12 : x - Step 2: Convert to fraction form
98,355,268.08/135,730,460.97 = 54,302,352.12/x - Step 3: Cross multiply
98,355,268.08x = 135,730,460.97 × 54,302,352.12 - Step 4: Simplify right side
98,355,268.08x = 7,370,483,285,002,856 - Step 5: Solve for x
x = 7,370,483,285,002,856/98,355,268.08 - Step 6: Final answer
x = 74,937,351.39
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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.