Finding the Fourth Proportional to 28,027,483.08, 38,677,873.20 and 15,636,839.28
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Solution
The fourth proportional to 28,027,483.08, 38,677,873.20 and 15,636,839.28 is: 21,578,808.39
Step by Step Solution
- Step 1: Write the proportion equation
28,027,483.08 : 38,677,873.20 = 15,636,839.28 : x - Step 2: Convert to fraction form
28,027,483.08/38,677,873.20 = 15,636,839.28/x - Step 3: Cross multiply
28,027,483.08x = 38,677,873.20 × 15,636,839.28 - Step 4: Simplify right side
28,027,483.08x = 604,799,686,920,619.38 - Step 5: Solve for x
x = 604,799,686,920,619.38/28,027,483.08 - Step 6: Final answer
x = 21,578,808.39
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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.