Finding the Fourth Proportional to 78,894,266.52, 117,763,656.63 and 69,575,525.40
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Solution
The fourth proportional to 78,894,266.52, 117,763,656.63 and 69,575,525.40 is: 103,853,786.14
Step by Step Solution
- Step 1: Write the proportion equation
78,894,266.52 : 117,763,656.63 = 69,575,525.40 : x - Step 2: Convert to fraction form
78,894,266.52/117,763,656.63 = 69,575,525.40/x - Step 3: Cross multiply
78,894,266.52x = 117,763,656.63 × 69,575,525.40 - Step 4: Simplify right side
78,894,266.52x = 8,193,468,283,057,444 - Step 5: Solve for x
x = 8,193,468,283,057,444/78,894,266.52 - Step 6: Final answer
x = 103,853,786.14
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.