Finding the Fourth Proportional to 39,685,485.60, 59,497,950.60 and 18,104,995.80
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Solution
The fourth proportional to 39,685,485.60, 59,497,950.60 and 18,104,995.80 is: 27,143,680.60
Step by Step Solution
- Step 1: Write the proportion equation
39,685,485.60 : 59,497,950.60 = 18,104,995.80 : x - Step 2: Convert to fraction form
39,685,485.60/59,497,950.60 = 18,104,995.80/x - Step 3: Cross multiply
39,685,485.60x = 59,497,950.60 × 18,104,995.80 - Step 4: Simplify right side
39,685,485.60x = 1,077,210,145,721,607.50 - Step 5: Solve for x
x = 1,077,210,145,721,607.50/39,685,485.60 - Step 6: Final answer
x = 27,143,680.60
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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.