Finding the Fourth Proportional to 77,787,630.48, 116,754,681.06 and 39,476,639.28
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Solution
The fourth proportional to 77,787,630.48, 116,754,681.06 and 39,476,639.28 is: 59,252,125.31
Step by Step Solution
- Step 1: Write the proportion equation
77,787,630.48 : 116,754,681.06 = 39,476,639.28 : x - Step 2: Convert to fraction form
77,787,630.48/116,754,681.06 = 39,476,639.28/x - Step 3: Cross multiply
77,787,630.48x = 116,754,681.06 × 39,476,639.28 - Step 4: Simplify right side
77,787,630.48x = 4,609,082,428,457,068 - Step 5: Solve for x
x = 4,609,082,428,457,068/77,787,630.48 - Step 6: Final answer
x = 59,252,125.31
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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.