Finding the Fourth Proportional to 4,376,497,721.20, 6,564,746,581.80 and 1,312,878,137.20
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Solution
The fourth proportional to 4,376,497,721.20, 6,564,746,581.80 and 1,312,878,137.20 is: 1,969,317,205.80
Step by Step Solution
- Step 1: Write the proportion equation
4,376,497,721.20 : 6,564,746,581.80 = 1,312,878,137.20 : x - Step 2: Convert to fraction form
4,376,497,721.20/6,564,746,581.80 = 1,312,878,137.20/x - Step 3: Cross multiply
4,376,497,721.20x = 6,564,746,581.80 × 1,312,878,137.20 - Step 4: Simplify right side
4,376,497,721.20x = 8,618,712,263,503,651,840 - Step 5: Solve for x
x = 8,618,712,263,503,651,840/4,376,497,721.20 - Step 6: Final answer
x = 1,969,317,205.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.