Finding the Fourth Proportional to 968,278,395.77, 1,452,417,545.05 and 921,231,940.13
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Solution
The fourth proportional to 968,278,395.77, 1,452,417,545.05 and 921,231,940.13 is: 1,381,847,863.95
Step by Step Solution
- Step 1: Write the proportion equation
968,278,395.77 : 1,452,417,545.05 = 921,231,940.13 : x - Step 2: Convert to fraction form
968,278,395.77/1,452,417,545.05 = 921,231,940.13/x - Step 3: Cross multiply
968,278,395.77x = 1,452,417,545.05 × 921,231,940.13 - Step 4: Simplify right side
968,278,395.77x = 1,338,013,432,906,303,488 - Step 5: Solve for x
x = 1,338,013,432,906,303,488/968,278,395.77 - Step 6: Final answer
x = 1,381,847,863.95
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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.