Finding the Fourth Proportional to 19,677,451.84, 27,163,590.95 and 12,711,525.86
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Solution
The fourth proportional to 19,677,451.84, 27,163,590.95 and 12,711,525.86 is: 17,547,530.63
Step by Step Solution
- Step 1: Write the proportion equation
19,677,451.84 : 27,163,590.95 = 12,711,525.86 : x - Step 2: Convert to fraction form
19,677,451.84/27,163,590.95 = 12,711,525.86/x - Step 3: Cross multiply
19,677,451.84x = 27,163,590.95 × 12,711,525.86 - Step 4: Simplify right side
19,677,451.84x = 345,290,688,911,074.81 - Step 5: Solve for x
x = 345,290,688,911,074.81/19,677,451.84 - Step 6: Final answer
x = 17,547,530.63
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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.