Finding the Fourth Proportional to 45,480,138.56, 62,768,992.12 and 28,954,984.31
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Solution
The fourth proportional to 45,480,138.56, 62,768,992.12 and 28,954,984.31 is: 39,961,953.49
Step by Step Solution
- Step 1: Write the proportion equation
45,480,138.56 : 62,768,992.12 = 28,954,984.31 : x - Step 2: Convert to fraction form
45,480,138.56/62,768,992.12 = 28,954,984.31/x - Step 3: Cross multiply
45,480,138.56x = 62,768,992.12 × 28,954,984.31 - Step 4: Simplify right side
45,480,138.56x = 1,817,475,181,602,881.25 - Step 5: Solve for x
x = 1,817,475,181,602,881.25/45,480,138.56 - Step 6: Final answer
x = 39,961,953.49
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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.