Finding the Fourth Proportional to 176,356,433.15, 243,013,270.80 and 136,421,455.80
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Solution
The fourth proportional to 176,356,433.15, 243,013,270.80 and 136,421,455.80 is: 187,984,206.70
Step by Step Solution
- Step 1: Write the proportion equation
176,356,433.15 : 243,013,270.80 = 136,421,455.80 : x - Step 2: Convert to fraction form
176,356,433.15/243,013,270.80 = 136,421,455.80/x - Step 3: Cross multiply
176,356,433.15x = 243,013,270.80 × 136,421,455.80 - Step 4: Simplify right side
176,356,433.15x = 33,152,224,182,678,516 - Step 5: Solve for x
x = 33,152,224,182,678,516/176,356,433.15 - Step 6: Final answer
x = 187,984,206.70
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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.