Finding the Fourth Proportional to 388,706,575.84, 533,559,760.05 and 343,666,951.09
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Solution
The fourth proportional to 388,706,575.84, 533,559,760.05 and 343,666,951.09 is: 471,735,924.62
Step by Step Solution
- Step 1: Write the proportion equation
388,706,575.84 : 533,559,760.05 = 343,666,951.09 : x - Step 2: Convert to fraction form
388,706,575.84/533,559,760.05 = 343,666,951.09/x - Step 3: Cross multiply
388,706,575.84x = 533,559,760.05 × 343,666,951.09 - Step 4: Simplify right side
388,706,575.84x = 183,366,855,960,695,488 - Step 5: Solve for x
x = 183,366,855,960,695,488/388,706,575.84 - Step 6: Final answer
x = 471,735,924.62
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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.