Finding the Fourth Proportional to 19,408,979.70, 29,144,962.35 and 10,905,923.70
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Solution
The fourth proportional to 19,408,979.70, 29,144,962.35 and 10,905,923.70 is: 16,376,581.38
Step by Step Solution
- Step 1: Write the proportion equation
19,408,979.70 : 29,144,962.35 = 10,905,923.70 : x - Step 2: Convert to fraction form
19,408,979.70/29,144,962.35 = 10,905,923.70/x - Step 3: Cross multiply
19,408,979.70x = 29,144,962.35 × 10,905,923.70 - Step 4: Simplify right side
19,408,979.70x = 317,852,735,628,472.69 - Step 5: Solve for x
x = 317,852,735,628,472.69/19,408,979.70 - Step 6: Final answer
x = 16,376,581.38
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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.