Finding the Fourth Proportional to 18,566,637.40, 27,840,799.86 and 7,634,830.42
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Solution
The fourth proportional to 18,566,637.40, 27,840,799.86 and 7,634,830.42 is: 11,448,480.47
Step by Step Solution
- Step 1: Write the proportion equation
18,566,637.40 : 27,840,799.86 = 7,634,830.42 : x - Step 2: Convert to fraction form
18,566,637.40/27,840,799.86 = 7,634,830.42/x - Step 3: Cross multiply
18,566,637.40x = 27,840,799.86 × 7,634,830.42 - Step 4: Simplify right side
18,566,637.40x = 212,559,785,688,259.75 - Step 5: Solve for x
x = 212,559,785,688,259.75/18,566,637.40 - Step 6: Final answer
x = 11,448,480.47
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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.