Finding the Fourth Proportional to 2,911,981.08, 4,018,547.35 and 1,689,010.68
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Solution
The fourth proportional to 2,911,981.08, 4,018,547.35 and 1,689,010.68 is: 2,330,842.54
Step by Step Solution
- Step 1: Write the proportion equation
2,911,981.08 : 4,018,547.35 = 1,689,010.68 : x - Step 2: Convert to fraction form
2,911,981.08/4,018,547.35 = 1,689,010.68/x - Step 3: Cross multiply
2,911,981.08x = 4,018,547.35 × 1,689,010.68 - Step 4: Simplify right side
2,911,981.08x = 6,787,369,399,915.83 - Step 5: Solve for x
x = 6,787,369,399,915.83/2,911,981.08 - Step 6: Final answer
x = 2,330,842.54
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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.