Finding the Fourth Proportional to 649,826,599.84, 896,772,874.08 and 398,805,169.92
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Solution
The fourth proportional to 649,826,599.84, 896,772,874.08 and 398,805,169.92 is: 550,358,601.07
Step by Step Solution
- Step 1: Write the proportion equation
649,826,599.84 : 896,772,874.08 = 398,805,169.92 : x - Step 2: Convert to fraction form
649,826,599.84/896,772,874.08 = 398,805,169.92/x - Step 3: Cross multiply
649,826,599.84x = 896,772,874.08 × 398,805,169.92 - Step 4: Simplify right side
649,826,599.84x = 357,637,658,427,121,216 - Step 5: Solve for x
x = 357,637,658,427,121,216/649,826,599.84 - Step 6: Final answer
x = 550,358,601.07
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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.