Finding the Fourth Proportional to 649,035,378.29, 895,669,609.35 and 351,677,390.47
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Solution
The fourth proportional to 649,035,378.29, 895,669,609.35 and 351,677,390.47 is: 485,315,225.45
Step by Step Solution
- Step 1: Write the proportion equation
649,035,378.29 : 895,669,609.35 = 351,677,390.47 : x - Step 2: Convert to fraction form
649,035,378.29/895,669,609.35 = 351,677,390.47/x - Step 3: Cross multiply
649,035,378.29x = 895,669,609.35 × 351,677,390.47 - Step 4: Simplify right side
649,035,378.29x = 314,986,750,939,492,352 - Step 5: Solve for x
x = 314,986,750,939,492,352/649,035,378.29 - Step 6: Final answer
x = 485,315,225.45
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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.