Finding the Fourth Proportional to 28,611,204.12, 39,484,499.97 and 16,390,423.08
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Solution
The fourth proportional to 28,611,204.12, 39,484,499.97 and 16,390,423.08 is: 22,619,378.65
Step by Step Solution
- Step 1: Write the proportion equation
28,611,204.12 : 39,484,499.97 = 16,390,423.08 : x - Step 2: Convert to fraction form
28,611,204.12/39,484,499.97 = 16,390,423.08/x - Step 3: Cross multiply
28,611,204.12x = 39,484,499.97 × 16,390,423.08 - Step 4: Simplify right side
28,611,204.12x = 647,167,659,610,547.25 - Step 5: Solve for x
x = 647,167,659,610,547.25/28,611,204.12 - Step 6: Final answer
x = 22,619,378.65
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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.