Finding the Fourth Proportional to 77,202,206, 115,778,766.12 and 25,374,854.96
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Solution
The fourth proportional to 77,202,206, 115,778,766.12 and 25,374,854.96 is: 38,054,215.68
Step by Step Solution
- Step 1: Write the proportion equation
77,202,206 : 115,778,766.12 = 25,374,854.96 : x - Step 2: Convert to fraction form
77,202,206/115,778,766.12 = 25,374,854.96/x - Step 3: Cross multiply
77,202,206x = 115,778,766.12 × 25,374,854.96 - Step 4: Simplify right side
77,202,206x = 2,937,869,397,742,762 - Step 5: Solve for x
x = 2,937,869,397,742,762/77,202,206 - Step 6: Final answer
x = 38,054,215.68
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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.