Finding the Fourth Proportional to 12,966,428.84, 19,450,472.70 and 4,988,252.84
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Solution
The fourth proportional to 12,966,428.84, 19,450,472.70 and 4,988,252.84 is: 7,482,698.35
Step by Step Solution
- Step 1: Write the proportion equation
12,966,428.84 : 19,450,472.70 = 4,988,252.84 : x - Step 2: Convert to fraction form
12,966,428.84/19,450,472.70 = 4,988,252.84/x - Step 3: Cross multiply
12,966,428.84x = 19,450,472.70 × 4,988,252.84 - Step 4: Simplify right side
12,966,428.84x = 97,023,875,685,117.47 - Step 5: Solve for x
x = 97,023,875,685,117.47/12,966,428.84 - Step 6: Final answer
x = 7,482,698.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.