Finding the Fourth Proportional to 1,539,541,910.43, 2,124,612,655.58 and 870,472,590.37
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Solution
The fourth proportional to 1,539,541,910.43, 2,124,612,655.58 and 870,472,590.37 is: 1,201,277,515.93
Step by Step Solution
- Step 1: Write the proportion equation
1,539,541,910.43 : 2,124,612,655.58 = 870,472,590.37 : x - Step 2: Convert to fraction form
1,539,541,910.43/2,124,612,655.58 = 870,472,590.37/x - Step 3: Cross multiply
1,539,541,910.43x = 2,124,612,655.58 × 870,472,590.37 - Step 4: Simplify right side
1,539,541,910.43x = 1,849,417,081,832,384,768 - Step 5: Solve for x
x = 1,849,417,081,832,384,768/1,539,541,910.43 - Step 6: Final answer
x = 1,201,277,515.93
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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.