Finding the Fourth Proportional to 583,464,589.98, 805,171,660.20 and 319,144,270.98
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Solution
The fourth proportional to 583,464,589.98, 805,171,660.20 and 319,144,270.98 is: 440,413,911.87
Step by Step Solution
- Step 1: Write the proportion equation
583,464,589.98 : 805,171,660.20 = 319,144,270.98 : x - Step 2: Convert to fraction form
583,464,589.98/805,171,660.20 = 319,144,270.98/x - Step 3: Cross multiply
583,464,589.98x = 805,171,660.20 × 319,144,270.98 - Step 4: Simplify right side
583,464,589.98x = 256,965,922,508,285,312 - Step 5: Solve for x
x = 256,965,922,508,285,312/583,464,589.98 - Step 6: Final answer
x = 440,413,911.87
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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.