Finding the Fourth Proportional to 420,944,660.94, 580,907,390.91 and 232,785,686.74
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Solution
The fourth proportional to 420,944,660.94, 580,907,390.91 and 232,785,686.74 is: 321,246,326.36
Step by Step Solution
- Step 1: Write the proportion equation
420,944,660.94 : 580,907,390.91 = 232,785,686.74 : x - Step 2: Convert to fraction form
420,944,660.94/580,907,390.91 = 232,785,686.74/x - Step 3: Cross multiply
420,944,660.94x = 580,907,390.91 × 232,785,686.74 - Step 4: Simplify right side
420,944,660.94x = 135,226,925,926,371,200 - Step 5: Solve for x
x = 135,226,925,926,371,200/420,944,660.94 - Step 6: Final answer
x = 321,246,326.36
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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.