Finding the Fourth Proportional to 456,780,061.84, 685,196,497.08 and 129,228,137.28
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Solution
The fourth proportional to 456,780,061.84, 685,196,497.08 and 129,228,137.28 is: 193,849,675.99
Step by Step Solution
- Step 1: Write the proportion equation
456,780,061.84 : 685,196,497.08 = 129,228,137.28 : x - Step 2: Convert to fraction form
456,780,061.84/685,196,497.08 = 129,228,137.28/x - Step 3: Cross multiply
456,780,061.84x = 685,196,497.08 × 129,228,137.28 - Step 4: Simplify right side
456,780,061.84x = 88,546,666,988,429,360 - Step 5: Solve for x
x = 88,546,666,988,429,360/456,780,061.84 - Step 6: Final answer
x = 193,849,675.99
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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.