Finding the Fourth Proportional to 39,130,580.68, 53,997,569.88 and 21,726,026.44
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Solution
The fourth proportional to 39,130,580.68, 53,997,569.88 and 21,726,026.44 is: 29,980,455.45
Step by Step Solution
- Step 1: Write the proportion equation
39,130,580.68 : 53,997,569.88 = 21,726,026.44 : x - Step 2: Convert to fraction form
39,130,580.68/53,997,569.88 = 21,726,026.44/x - Step 3: Cross multiply
39,130,580.68x = 53,997,569.88 × 21,726,026.44 - Step 4: Simplify right side
39,130,580.68x = 1,173,152,630,908,627.75 - Step 5: Solve for x
x = 1,173,152,630,908,627.75/39,130,580.68 - Step 6: Final answer
x = 29,980,455.45
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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.