Finding the Fourth Proportional to 176,356,427.90, 243,013,263.57 and 136,421,450.54
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Solution
The fourth proportional to 176,356,427.90, 243,013,263.57 and 136,421,450.54 is: 187,984,199.45
Step by Step Solution
- Step 1: Write the proportion equation
176,356,427.90 : 243,013,263.57 = 136,421,450.54 : x - Step 2: Convert to fraction form
176,356,427.90/243,013,263.57 = 136,421,450.54/x - Step 3: Cross multiply
176,356,427.90x = 243,013,263.57 × 136,421,450.54 - Step 4: Simplify right side
176,356,427.90x = 33,152,221,916,678,736 - Step 5: Solve for x
x = 33,152,221,916,678,736/176,356,427.90 - Step 6: Final answer
x = 187,984,199.45
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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.