Finding the Fourth Proportional to 388,706,574.84, 533,559,758.68 and 343,666,950.09
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Solution
The fourth proportional to 388,706,574.84, 533,559,758.68 and 343,666,950.09 is: 471,735,923.25
Step by Step Solution
- Step 1: Write the proportion equation
388,706,574.84 : 533,559,758.68 = 343,666,950.09 : x - Step 2: Convert to fraction form
388,706,574.84/533,559,758.68 = 343,666,950.09/x - Step 3: Cross multiply
388,706,574.84x = 533,559,758.68 × 343,666,950.09 - Step 4: Simplify right side
388,706,574.84x = 183,366,854,956,312,000 - Step 5: Solve for x
x = 183,366,854,956,312,000/388,706,574.84 - Step 6: Final answer
x = 471,735,923.25
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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.