Finding the Fourth Proportional to 313,686,315.82, 432,884,726.92 and 172,554,504.99
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Solution
The fourth proportional to 313,686,315.82, 432,884,726.92 and 172,554,504.99 is: 238,123,902.77
Step by Step Solution
- Step 1: Write the proportion equation
313,686,315.82 : 432,884,726.92 = 172,554,504.99 : x - Step 2: Convert to fraction form
313,686,315.82/432,884,726.92 = 172,554,504.99/x - Step 3: Cross multiply
313,686,315.82x = 432,884,726.92 × 172,554,504.99 - Step 4: Simplify right side
313,686,315.82x = 74,696,209,768,816,128 - Step 5: Solve for x
x = 74,696,209,768,816,128/313,686,315.82 - Step 6: Final answer
x = 238,123,902.77
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.