Finding the Fourth Proportional to 138,813,538.93, 191,450,986.16 and 122,032,397.95
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Solution
The fourth proportional to 138,813,538.93, 191,450,986.16 and 122,032,397.95 is: 168,306,514.70
Step by Step Solution
- Step 1: Write the proportion equation
138,813,538.93 : 191,450,986.16 = 122,032,397.95 : x - Step 2: Convert to fraction form
138,813,538.93/191,450,986.16 = 122,032,397.95/x - Step 3: Cross multiply
138,813,538.93x = 191,450,986.16 × 122,032,397.95 - Step 4: Simplify right side
138,813,538.93x = 23,363,222,929,908,276 - Step 5: Solve for x
x = 23,363,222,929,908,276/138,813,538.93 - Step 6: Final answer
x = 168,306,514.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.