Finding the Fourth Proportional to 896,985,811.90, 1,345,478,717.85 and 655,121,107.90
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Solution
The fourth proportional to 896,985,811.90, 1,345,478,717.85 and 655,121,107.90 is: 982,681,661.85
Step by Step Solution
- Step 1: Write the proportion equation
896,985,811.90 : 1,345,478,717.85 = 655,121,107.90 : x - Step 2: Convert to fraction form
896,985,811.90/1,345,478,717.85 = 655,121,107.90/x - Step 3: Cross multiply
896,985,811.90x = 1,345,478,717.85 × 655,121,107.90 - Step 4: Simplify right side
896,985,811.90x = 881,451,508,293,763,456 - Step 5: Solve for x
x = 881,451,508,293,763,456/896,985,811.90 - Step 6: Final answer
x = 982,681,661.85
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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.