Finding the Fourth Proportional to 509,660,428.24, 703,391,101.32 and 289,676,921.68
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Solution
The fourth proportional to 509,660,428.24, 703,391,101.32 and 289,676,921.68 is: 399,788,089.63
Step by Step Solution
- Step 1: Write the proportion equation
509,660,428.24 : 703,391,101.32 = 289,676,921.68 : x - Step 2: Convert to fraction form
509,660,428.24/703,391,101.32 = 289,676,921.68/x - Step 3: Cross multiply
509,660,428.24x = 703,391,101.32 × 289,676,921.68 - Step 4: Simplify right side
509,660,428.24x = 203,756,168,967,482,592 - Step 5: Solve for x
x = 203,756,168,967,482,592/509,660,428.24 - Step 6: Final answer
x = 399,788,089.63
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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.