Finding the Fourth Proportional to 10,530,000.80, 14,533,646.16 and 7,226,813.60
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Solution
The fourth proportional to 10,530,000.80, 14,533,646.16 and 7,226,813.60 is: 9,974,543.57
Step by Step Solution
- Step 1: Write the proportion equation
10,530,000.80 : 14,533,646.16 = 7,226,813.60 : x - Step 2: Convert to fraction form
10,530,000.80/14,533,646.16 = 7,226,813.60/x - Step 3: Cross multiply
10,530,000.80x = 14,533,646.16 × 7,226,813.60 - Step 4: Simplify right side
10,530,000.80x = 105,031,951,726,675.77 - Step 5: Solve for x
x = 105,031,951,726,675.77/10,530,000.80 - Step 6: Final answer
x = 9,974,543.57
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Double scale
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1.5x scale
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.