Finding the Fourth Proportional to 77,202,200, 115,778,757.12 and 25,374,848.96
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Solution
The fourth proportional to 77,202,200, 115,778,757.12 and 25,374,848.96 is: 38,054,206.68
Step by Step Solution
- Step 1: Write the proportion equation
77,202,200 : 115,778,757.12 = 25,374,848.96 : x - Step 2: Convert to fraction form
77,202,200/115,778,757.12 = 25,374,848.96/x - Step 3: Cross multiply
77,202,200x = 115,778,757.12 × 25,374,848.96 - Step 4: Simplify right side
77,202,200x = 2,937,868,474,696,525 - Step 5: Solve for x
x = 2,937,868,474,696,525/77,202,200 - Step 6: Final answer
x = 38,054,206.68
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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.