Finding the Fourth Proportional to 9,220,941.79, 12,713,071.36 and 7,560,972.95
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Solution
The fourth proportional to 9,220,941.79, 12,713,071.36 and 7,560,972.95 is: 10,424,443.70
Step by Step Solution
- Step 1: Write the proportion equation
9,220,941.79 : 12,713,071.36 = 7,560,972.95 : x - Step 2: Convert to fraction form
9,220,941.79/12,713,071.36 = 7,560,972.95/x - Step 3: Cross multiply
9,220,941.79x = 12,713,071.36 × 7,560,972.95 - Step 4: Simplify right side
9,220,941.79x = 96,123,188,594,792.17 - Step 5: Solve for x
x = 96,123,188,594,792.17/9,220,941.79 - Step 6: Final answer
x = 10,424,443.70
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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.