Finding the Fourth Proportional to 10,657,817.80, 15,986,726.70 and 2,679,641.80
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Solution
The fourth proportional to 10,657,817.80, 15,986,726.70 and 2,679,641.80 is: 4,019,462.70
Step by Step Solution
- Step 1: Write the proportion equation
10,657,817.80 : 15,986,726.70 = 2,679,641.80 : x - Step 2: Convert to fraction form
10,657,817.80/15,986,726.70 = 2,679,641.80/x - Step 3: Cross multiply
10,657,817.80x = 15,986,726.70 × 2,679,641.80 - Step 4: Simplify right side
10,657,817.80x = 42,838,701,110,496.05 - Step 5: Solve for x
x = 42,838,701,110,496.05/10,657,817.80 - Step 6: Final answer
x = 4,019,462.70
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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.