Finding the Fourth Proportional to 4,974,811.10, 7,465,903.05 and 1,985,140.70
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Solution
The fourth proportional to 4,974,811.10, 7,465,903.05 and 1,985,140.70 is: 2,979,182.07
Step by Step Solution
- Step 1: Write the proportion equation
4,974,811.10 : 7,465,903.05 = 1,985,140.70 : x - Step 2: Convert to fraction form
4,974,811.10/7,465,903.05 = 1,985,140.70/x - Step 3: Cross multiply
4,974,811.10x = 7,465,903.05 × 1,985,140.70 - Step 4: Simplify right side
4,974,811.10x = 14,820,868,006,809.13 - Step 5: Solve for x
x = 14,820,868,006,809.13/4,974,811.10 - Step 6: Final answer
x = 2,979,182.07
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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.