Finding the Fourth Proportional to 85,063,726.60, 127,595,589.90 and 39,630,113.80
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Solution
The fourth proportional to 85,063,726.60, 127,595,589.90 and 39,630,113.80 is: 59,445,170.70
Step by Step Solution
- Step 1: Write the proportion equation
85,063,726.60 : 127,595,589.90 = 39,630,113.80 : x - Step 2: Convert to fraction form
85,063,726.60/127,595,589.90 = 39,630,113.80/x - Step 3: Cross multiply
85,063,726.60x = 127,595,589.90 × 39,630,113.80 - Step 4: Simplify right side
85,063,726.60x = 5,056,627,748,115,130 - Step 5: Solve for x
x = 5,056,627,748,115,130/85,063,726.60 - Step 6: Final answer
x = 59,445,170.70
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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.