Finding the Fourth Proportional to 219,002,777.65, 302,204,681.76 and 129,678,697.09
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Solution
The fourth proportional to 219,002,777.65, 302,204,681.76 and 129,678,697.09 is: 178,945,261.82
Step by Step Solution
- Step 1: Write the proportion equation
219,002,777.65 : 302,204,681.76 = 129,678,697.09 : x - Step 2: Convert to fraction form
219,002,777.65/302,204,681.76 = 129,678,697.09/x - Step 3: Cross multiply
219,002,777.65x = 302,204,681.76 × 129,678,697.09 - Step 4: Simplify right side
219,002,777.65x = 39,189,509,385,134,888 - Step 5: Solve for x
x = 39,189,509,385,134,888/219,002,777.65 - Step 6: Final answer
x = 178,945,261.82
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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.