Finding the Fourth Proportional to 1,417,471,515.20, 2,126,207,272.80 and 870,439,246.40
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Solution
The fourth proportional to 1,417,471,515.20, 2,126,207,272.80 and 870,439,246.40 is: 1,305,658,869.60
Step by Step Solution
- Step 1: Write the proportion equation
1,417,471,515.20 : 2,126,207,272.80 = 870,439,246.40 : x - Step 2: Convert to fraction form
1,417,471,515.20/2,126,207,272.80 = 870,439,246.40/x - Step 3: Cross multiply
1,417,471,515.20x = 2,126,207,272.80 × 870,439,246.40 - Step 4: Simplify right side
1,417,471,515.20x = 1,850,734,256,226,231,040 - Step 5: Solve for x
x = 1,850,734,256,226,231,040/1,417,471,515.20 - Step 6: Final answer
x = 1,305,658,869.60
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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.