Finding the Fourth Proportional to 53,367,811.63, 73,647,643.05 and 28,921,525.63
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Solution
The fourth proportional to 53,367,811.63, 73,647,643.05 and 28,921,525.63 is: 39,911,739.51
Step by Step Solution
- Step 1: Write the proportion equation
53,367,811.63 : 73,647,643.05 = 28,921,525.63 : x - Step 2: Convert to fraction form
53,367,811.63/73,647,643.05 = 28,921,525.63/x - Step 3: Cross multiply
53,367,811.63x = 73,647,643.05 × 28,921,525.63 - Step 4: Simplify right side
53,367,811.63x = 2,130,002,196,059,666.25 - Step 5: Solve for x
x = 2,130,002,196,059,666.25/53,367,811.63 - Step 6: Final answer
x = 39,911,739.51
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1.5x scale
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.