Finding the Fourth Proportional to 5,376,139.40, 8,064,209.10 and 4,430,577.80
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Solution
The fourth proportional to 5,376,139.40, 8,064,209.10 and 4,430,577.80 is: 6,645,866.70
Step by Step Solution
- Step 1: Write the proportion equation
5,376,139.40 : 8,064,209.10 = 4,430,577.80 : x - Step 2: Convert to fraction form
5,376,139.40/8,064,209.10 = 4,430,577.80/x - Step 3: Cross multiply
5,376,139.40x = 8,064,209.10 × 4,430,577.80 - Step 4: Simplify right side
5,376,139.40x = 35,729,105,813,017.98 - Step 5: Solve for x
x = 35,729,105,813,017.98/5,376,139.40 - Step 6: Final answer
x = 6,645,866.70
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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.