Finding the Fourth Proportional to 64,743,516.80, 97,115,275.20 and 57,689,129.60
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Solution
The fourth proportional to 64,743,516.80, 97,115,275.20 and 57,689,129.60 is: 86,533,694.40
Step by Step Solution
- Step 1: Write the proportion equation
64,743,516.80 : 97,115,275.20 = 57,689,129.60 : x - Step 2: Convert to fraction form
64,743,516.80/97,115,275.20 = 57,689,129.60/x - Step 3: Cross multiply
64,743,516.80x = 97,115,275.20 × 57,689,129.60 - Step 4: Simplify right side
64,743,516.80x = 5,602,495,697,152,466 - Step 5: Solve for x
x = 5,602,495,697,152,466/64,743,516.80 - Step 6: Final answer
x = 86,533,694.40
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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.