Finding the Fourth Proportional to 7,915,997.40, 10,918,444.68 and 7,264,726.44
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Solution
The fourth proportional to 7,915,997.40, 10,918,444.68 and 7,264,726.44 is: 10,020,154.09
Step by Step Solution
- Step 1: Write the proportion equation
7,915,997.40 : 10,918,444.68 = 7,264,726.44 : x - Step 2: Convert to fraction form
7,915,997.40/10,918,444.68 = 7,264,726.44/x - Step 3: Cross multiply
7,915,997.40x = 10,918,444.68 × 7,264,726.44 - Step 4: Simplify right side
7,915,997.40x = 79,319,513,750,473.34 - Step 5: Solve for x
x = 79,319,513,750,473.34/7,915,997.40 - Step 6: Final answer
x = 10,020,154.09
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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.