Finding the Fourth Proportional to 9,979,490.10, 14,969,235.15 and 9,587,579.70
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Solution
The fourth proportional to 9,979,490.10, 14,969,235.15 and 9,587,579.70 is: 14,381,369.55
Step by Step Solution
- Step 1: Write the proportion equation
9,979,490.10 : 14,969,235.15 = 9,587,579.70 : x - Step 2: Convert to fraction form
9,979,490.10/14,969,235.15 = 9,587,579.70/x - Step 3: Cross multiply
9,979,490.10x = 14,969,235.15 × 9,587,579.70 - Step 4: Simplify right side
9,979,490.10x = 143,518,735,048,666.44 - Step 5: Solve for x
x = 143,518,735,048,666.44/9,979,490.10 - Step 6: Final answer
x = 14,381,369.55
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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.