Finding the Fourth Proportional to 76,985,184, 115,477,924.64 and 18,692,616.28
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Solution
The fourth proportional to 76,985,184, 115,477,924.64 and 18,692,616.28 is: 28,038,960.51
Step by Step Solution
- Step 1: Write the proportion equation
76,985,184 : 115,477,924.64 = 18,692,616.28 : x - Step 2: Convert to fraction form
76,985,184/115,477,924.64 = 18,692,616.28/x - Step 3: Cross multiply
76,985,184x = 115,477,924.64 × 18,692,616.28 - Step 4: Simplify right side
76,985,184x = 2,158,584,534,106,277.25 - Step 5: Solve for x
x = 2,158,584,534,106,277.25/76,985,184 - Step 6: Final answer
x = 28,038,960.51
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.