Finding the Fourth Proportional to 5,368,671.66, 7,408,656.99 and 2,921,331.18
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Solution
The fourth proportional to 5,368,671.66, 7,408,656.99 and 2,921,331.18 is: 4,031,377.23
Step by Step Solution
- Step 1: Write the proportion equation
5,368,671.66 : 7,408,656.99 = 2,921,331.18 : x - Step 2: Convert to fraction form
5,368,671.66/7,408,656.99 = 2,921,331.18/x - Step 3: Cross multiply
5,368,671.66x = 7,408,656.99 × 2,921,331.18 - Step 4: Simplify right side
5,368,671.66x = 21,643,140,666,811.95 - Step 5: Solve for x
x = 21,643,140,666,811.95/5,368,671.66 - Step 6: Final answer
x = 4,031,377.23
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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.