Finding the Fourth Proportional to 19,178,291.64, 26,466,847.14 and 11,029,536.12
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Solution
The fourth proportional to 19,178,291.64, 26,466,847.14 and 11,029,536.12 is: 15,221,222.62
Step by Step Solution
- Step 1: Write the proportion equation
19,178,291.64 : 26,466,847.14 = 11,029,536.12 : x - Step 2: Convert to fraction form
19,178,291.64/26,466,847.14 = 11,029,536.12/x - Step 3: Cross multiply
19,178,291.64x = 26,466,847.14 × 11,029,536.12 - Step 4: Simplify right side
19,178,291.64x = 291,917,046,513,148.69 - Step 5: Solve for x
x = 291,917,046,513,148.69/19,178,291.64 - Step 6: Final answer
x = 15,221,222.62
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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.