Finding the Fourth Proportional to 12,310,746.53, 16,980,019.35 and 8,640,482.12
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Solution
The fourth proportional to 12,310,746.53, 16,980,019.35 and 8,640,482.12 is: 11,917,681.29
Step by Step Solution
- Step 1: Write the proportion equation
12,310,746.53 : 16,980,019.35 = 8,640,482.12 : x - Step 2: Convert to fraction form
12,310,746.53/16,980,019.35 = 8,640,482.12/x - Step 3: Cross multiply
12,310,746.53x = 16,980,019.35 × 8,640,482.12 - Step 4: Simplify right side
12,310,746.53x = 146,715,553,585,904.91 - Step 5: Solve for x
x = 146,715,553,585,904.91/12,310,746.53 - Step 6: Final answer
x = 11,917,681.29
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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.