Finding the Fourth Proportional to 643,398,365.19, 965,423,497.41 and 293,605,669.65
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Solution
The fourth proportional to 643,398,365.19, 965,423,497.41 and 293,605,669.65 is: 440,557,246.94
Step by Step Solution
- Step 1: Write the proportion equation
643,398,365.19 : 965,423,497.41 = 293,605,669.65 : x - Step 2: Convert to fraction form
643,398,365.19/965,423,497.41 = 293,605,669.65/x - Step 3: Cross multiply
643,398,365.19x = 965,423,497.41 × 293,605,669.65 - Step 4: Simplify right side
643,398,365.19x = 283,453,812,452,908,064 - Step 5: Solve for x
x = 283,453,812,452,908,064/643,398,365.19 - Step 6: Final answer
x = 440,557,246.94
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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.