Finding the Fourth Proportional to 896,990,578.90, 1,345,485,868.35 and 655,125,874.90
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Solution
The fourth proportional to 896,990,578.90, 1,345,485,868.35 and 655,125,874.90 is: 982,688,812.35
Step by Step Solution
- Step 1: Write the proportion equation
896,990,578.90 : 1,345,485,868.35 = 655,125,874.90 : x - Step 2: Convert to fraction form
896,990,578.90/1,345,485,868.35 = 655,125,874.90/x - Step 3: Cross multiply
896,990,578.90x = 1,345,485,868.35 × 655,125,874.90 - Step 4: Simplify right side
896,990,578.90x = 881,462,606,668,379,904 - Step 5: Solve for x
x = 881,462,606,668,379,904/896,990,578.90 - Step 6: Final answer
x = 982,688,812.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.