Finding the Fourth Proportional to 375,030,013.80, 562,545,020.70 and 193,631,485.80
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Solution
The fourth proportional to 375,030,013.80, 562,545,020.70 and 193,631,485.80 is: 290,447,228.70
Step by Step Solution
- Step 1: Write the proportion equation
375,030,013.80 : 562,545,020.70 = 193,631,485.80 : x - Step 2: Convert to fraction form
375,030,013.80/562,545,020.70 = 193,631,485.80/x - Step 3: Cross multiply
375,030,013.80x = 562,545,020.70 × 193,631,485.80 - Step 4: Simplify right side
375,030,013.80x = 108,926,428,187,532,768 - Step 5: Solve for x
x = 108,926,428,187,532,768/375,030,013.80 - Step 6: Final answer
x = 290,447,228.70
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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.