Finding the Fourth Proportional to 1,122,187,927.44, 1,548,667,166.16 and 627,150,621.36
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Solution
The fourth proportional to 1,122,187,927.44, 1,548,667,166.16 and 627,150,621.36 is: 865,494,585.88
Step by Step Solution
- Step 1: Write the proportion equation
1,122,187,927.44 : 1,548,667,166.16 = 627,150,621.36 : x - Step 2: Convert to fraction form
1,122,187,927.44/1,548,667,166.16 = 627,150,621.36/x - Step 3: Cross multiply
1,122,187,927.44x = 1,548,667,166.16 × 627,150,621.36 - Step 4: Simplify right side
1,122,187,927.44x = 971,247,575,537,074,432 - Step 5: Solve for x
x = 971,247,575,537,074,432/1,122,187,927.44 - Step 6: Final answer
x = 865,494,585.88
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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.