Finding the Fourth Proportional to 152,169,515.88, 210,013,740.36 and 85,213,974.84
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Solution
The fourth proportional to 152,169,515.88, 210,013,740.36 and 85,213,974.84 is: 117,606,377.88
Step by Step Solution
- Step 1: Write the proportion equation
152,169,515.88 : 210,013,740.36 = 85,213,974.84 : x - Step 2: Convert to fraction form
152,169,515.88/210,013,740.36 = 85,213,974.84/x - Step 3: Cross multiply
152,169,515.88x = 210,013,740.36 × 85,213,974.84 - Step 4: Simplify right side
152,169,515.88x = 17,896,105,587,091,334 - Step 5: Solve for x
x = 17,896,105,587,091,334/152,169,515.88 - Step 6: Final answer
x = 117,606,377.88
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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.