Finding the Fourth Proportional to 12,912,135.60, 19,368,203.40 and 6,193,671.60
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Solution
The fourth proportional to 12,912,135.60, 19,368,203.40 and 6,193,671.60 is: 9,290,507.40
Step by Step Solution
- Step 1: Write the proportion equation
12,912,135.60 : 19,368,203.40 = 6,193,671.60 : x - Step 2: Convert to fraction form
12,912,135.60/19,368,203.40 = 6,193,671.60/x - Step 3: Cross multiply
12,912,135.60x = 19,368,203.40 × 6,193,671.60 - Step 4: Simplify right side
12,912,135.60x = 119,960,291,341,603.42 - Step 5: Solve for x
x = 119,960,291,341,603.42/12,912,135.60 - Step 6: Final answer
x = 9,290,507.40
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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.