Finding the Fourth Proportional to 851,810,981.99, 1,175,510,576.58 and 480,531,865.19
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Solution
The fourth proportional to 851,810,981.99, 1,175,510,576.58 and 480,531,865.19 is: 663,140,417.13
Step by Step Solution
- Step 1: Write the proportion equation
851,810,981.99 : 1,175,510,576.58 = 480,531,865.19 : x - Step 2: Convert to fraction form
851,810,981.99/1,175,510,576.58 = 480,531,865.19/x - Step 3: Cross multiply
851,810,981.99x = 1,175,510,576.58 × 480,531,865.19 - Step 4: Simplify right side
851,810,981.99x = 564,870,289,914,559,680 - Step 5: Solve for x
x = 564,870,289,914,559,680/851,810,981.99 - Step 6: Final answer
x = 663,140,417.13
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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.