Finding the Fourth Proportional to 5,122,526.28, 7,069,088.75 and 2,830,686.98
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Solution
The fourth proportional to 5,122,526.28, 7,069,088.75 and 2,830,686.98 is: 3,906,349.40
Step by Step Solution
- Step 1: Write the proportion equation
5,122,526.28 : 7,069,088.75 = 2,830,686.98 : x - Step 2: Convert to fraction form
5,122,526.28/7,069,088.75 = 2,830,686.98/x - Step 3: Cross multiply
5,122,526.28x = 7,069,088.75 × 2,830,686.98 - Step 4: Simplify right side
5,122,526.28x = 20,010,377,435,590.60 - Step 5: Solve for x
x = 20,010,377,435,590.60/5,122,526.28 - Step 6: Final answer
x = 3,906,349.40
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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.