Finding the Fourth Proportional to 77,124,870.80, 115,696,084.84 and 27,963,875.67
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Solution
The fourth proportional to 77,124,870.80, 115,696,084.84 and 27,963,875.67 is: 41,948,996.46
Step by Step Solution
- Step 1: Write the proportion equation
77,124,870.80 : 115,696,084.84 = 27,963,875.67 : x - Step 2: Convert to fraction form
77,124,870.80/115,696,084.84 = 27,963,875.67/x - Step 3: Cross multiply
77,124,870.80x = 115,696,084.84 × 27,963,875.67 - Step 4: Simplify right side
77,124,870.80x = 3,235,310,931,971,532 - Step 5: Solve for x
x = 3,235,310,931,971,532/77,124,870.80 - Step 6: Final answer
x = 41,948,996.46
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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.