Finding the Fourth Proportional to 138,487,279.68, 207,749,818.08 and 57,689,352
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Solution
The fourth proportional to 138,487,279.68, 207,749,818.08 and 57,689,352 is: 86,541,900.53
Step by Step Solution
- Step 1: Write the proportion equation
138,487,279.68 : 207,749,818.08 = 57,689,352 : x - Step 2: Convert to fraction form
138,487,279.68/207,749,818.08 = 57,689,352/x - Step 3: Cross multiply
138,487,279.68x = 207,749,818.08 × 57,689,352 - Step 4: Simplify right side
138,487,279.68x = 11,984,952,383,153,084 - Step 5: Solve for x
x = 11,984,952,383,153,084/138,487,279.68 - Step 6: Final answer
x = 86,541,900.53
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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.