Finding the Fourth Proportional to 97,872,206.46, 135,072,251.91 and 53,826,966.06
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Solution
The fourth proportional to 97,872,206.46, 135,072,251.91 and 53,826,966.06 is: 74,285,946.77
Step by Step Solution
- Step 1: Write the proportion equation
97,872,206.46 : 135,072,251.91 = 53,826,966.06 : x - Step 2: Convert to fraction form
97,872,206.46/135,072,251.91 = 53,826,966.06/x - Step 3: Cross multiply
97,872,206.46x = 135,072,251.91 × 53,826,966.06 - Step 4: Simplify right side
97,872,206.46x = 7,270,529,519,207,340 - Step 5: Solve for x
x = 7,270,529,519,207,340/97,872,206.46 - Step 6: Final answer
x = 74,285,946.77
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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.