Finding the Fourth Proportional to 7,876,772,639.60, 10,869,818,340.58 and 4,308,448,332.28
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Solution
The fourth proportional to 7,876,772,639.60, 10,869,818,340.58 and 4,308,448,332.28 is: 5,945,588,738.49
Step by Step Solution
- Step 1: Write the proportion equation
7,876,772,639.60 : 10,869,818,340.58 = 4,308,448,332.28 : x - Step 2: Convert to fraction form
7,876,772,639.60/10,869,818,340.58 = 4,308,448,332.28/x - Step 3: Cross multiply
7,876,772,639.60x = 10,869,818,340.58 × 4,308,448,332.28 - Step 4: Simplify right side
7,876,772,639.60x = 46,832,050,701,658,456,064 - Step 5: Solve for x
x = 46,832,050,701,658,456,064/7,876,772,639.60 - Step 6: Final answer
x = 5,945,588,738.49
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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.