Finding the Fourth Proportional to 231,710,342.79, 319,766,038.99 and 125,863,724.82
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Solution
The fourth proportional to 231,710,342.79, 319,766,038.99 and 125,863,724.82 is: 173,695,072.27
Step by Step Solution
- Step 1: Write the proportion equation
231,710,342.79 : 319,766,038.99 = 125,863,724.82 : x - Step 2: Convert to fraction form
231,710,342.79/319,766,038.99 = 125,863,724.82/x - Step 3: Cross multiply
231,710,342.79x = 319,766,038.99 × 125,863,724.82 - Step 4: Simplify right side
231,710,342.79x = 40,246,944,736,704,968 - Step 5: Solve for x
x = 40,246,944,736,704,968/231,710,342.79 - Step 6: Final answer
x = 173,695,072.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.