Finding the Fourth Proportional to 83,537,963,417.20, 125,306,945,125.80 and 28,392,810,905.20
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Solution
The fourth proportional to 83,537,963,417.20, 125,306,945,125.80 and 28,392,810,905.20 is: 42,589,216,357.80
Step by Step Solution
- Step 1: Write the proportion equation
83,537,963,417.20 : 125,306,945,125.80 = 28,392,810,905.20 : x - Step 2: Convert to fraction form
83,537,963,417.20/125,306,945,125.80 = 28,392,810,905.20/x - Step 3: Cross multiply
83,537,963,417.20x = 125,306,945,125.80 × 28,392,810,905.20 - Step 4: Simplify right side
83,537,963,417.20x = 3,557,816,398,065,112,186,880 - Step 5: Solve for x
x = 3,557,816,398,065,112,186,880/83,537,963,417.20 - Step 6: Final answer
x = 42,589,216,357.80
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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.