Finding the Fourth Proportional to 10,903,459.80, 16,355,189.70 and 6,651,931.80
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Solution
The fourth proportional to 10,903,459.80, 16,355,189.70 and 6,651,931.80 is: 9,977,897.70
Step by Step Solution
- Step 1: Write the proportion equation
10,903,459.80 : 16,355,189.70 = 6,651,931.80 : x - Step 2: Convert to fraction form
10,903,459.80/16,355,189.70 = 6,651,931.80/x - Step 3: Cross multiply
10,903,459.80x = 16,355,189.70 × 6,651,931.80 - Step 4: Simplify right side
10,903,459.80x = 108,793,606,460,462.45 - Step 5: Solve for x
x = 108,793,606,460,462.45/10,903,459.80 - Step 6: Final answer
x = 9,977,897.70
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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.