Finding the Fourth Proportional to 1,417,471,497.60, 2,126,207,246.40 and 870,439,228.80
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Solution
The fourth proportional to 1,417,471,497.60, 2,126,207,246.40 and 870,439,228.80 is: 1,305,658,843.20
Step by Step Solution
- Step 1: Write the proportion equation
1,417,471,497.60 : 2,126,207,246.40 = 870,439,228.80 : x - Step 2: Convert to fraction form
1,417,471,497.60/2,126,207,246.40 = 870,439,228.80/x - Step 3: Cross multiply
1,417,471,497.60x = 2,126,207,246.40 × 870,439,228.80 - Step 4: Simplify right side
1,417,471,497.60x = 1,850,734,195,825,387,520 - Step 5: Solve for x
x = 1,850,734,195,825,387,520/1,417,471,497.60 - Step 6: Final answer
x = 1,305,658,843.20
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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.