Finding the Fourth Proportional to 913,498,892.44, 1,260,629,854.14 and 495,811,328.92
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Solution
The fourth proportional to 913,498,892.44, 1,260,629,854.14 and 495,811,328.92 is: 684,220,384.32
Step by Step Solution
- Step 1: Write the proportion equation
913,498,892.44 : 1,260,629,854.14 = 495,811,328.92 : x - Step 2: Convert to fraction form
913,498,892.44/1,260,629,854.14 = 495,811,328.92/x - Step 3: Cross multiply
913,498,892.44x = 1,260,629,854.14 × 495,811,328.92 - Step 4: Simplify right side
913,498,892.44x = 625,034,563,257,379,200 - Step 5: Solve for x
x = 625,034,563,257,379,200/913,498,892.44 - Step 6: Final answer
x = 684,220,384.32
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Double scale
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1.5x scale
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.