Finding the Fourth Proportional to 78,375,337.74, 117,307,129.86 and 57,620,296.68
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Solution
The fourth proportional to 78,375,337.74, 117,307,129.86 and 57,620,296.68 is: 86,242,328.52
Step by Step Solution
- Step 1: Write the proportion equation
78,375,337.74 : 117,307,129.86 = 57,620,296.68 : x - Step 2: Convert to fraction form
78,375,337.74/117,307,129.86 = 57,620,296.68/x - Step 3: Cross multiply
78,375,337.74x = 117,307,129.86 × 57,620,296.68 - Step 4: Simplify right side
78,375,337.74x = 6,759,271,625,212,487 - Step 5: Solve for x
x = 6,759,271,625,212,487/78,375,337.74 - Step 6: Final answer
x = 86,242,328.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.