Finding the Fourth Proportional to 143,014,681.80, 214,522,022.70 and 47,276,569.80
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Solution
The fourth proportional to 143,014,681.80, 214,522,022.70 and 47,276,569.80 is: 70,914,854.70
Step by Step Solution
- Step 1: Write the proportion equation
143,014,681.80 : 214,522,022.70 = 47,276,569.80 : x - Step 2: Convert to fraction form
143,014,681.80/214,522,022.70 = 47,276,569.80/x - Step 3: Cross multiply
143,014,681.80x = 214,522,022.70 × 47,276,569.80 - Step 4: Simplify right side
143,014,681.80x = 10,141,865,379,813,734 - Step 5: Solve for x
x = 10,141,865,379,813,734/143,014,681.80 - Step 6: Final answer
x = 70,914,854.70
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1.5x scale
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.