Finding the Fourth Proportional to 10,778,459.80, 16,167,689.70 and 6,516,434.20
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Solution
The fourth proportional to 10,778,459.80, 16,167,689.70 and 6,516,434.20 is: 9,774,651.30
Step by Step Solution
- Step 1: Write the proportion equation
10,778,459.80 : 16,167,689.70 = 6,516,434.20 : x - Step 2: Convert to fraction form
10,778,459.80/16,167,689.70 = 6,516,434.20/x - Step 3: Cross multiply
10,778,459.80x = 16,167,689.70 × 6,516,434.20 - Step 4: Simplify right side
10,778,459.80x = 105,355,686,096,067.73 - Step 5: Solve for x
x = 105,355,686,096,067.73/10,778,459.80 - Step 6: Final answer
x = 9,774,651.30
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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.