Finding the Fourth Proportional to 140,246,565.12, 193,559,485.68 and 80,706,638.16
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Solution
The fourth proportional to 140,246,565.12, 193,559,485.68 and 80,706,638.16 is: 111,386,224.40
Step by Step Solution
- Step 1: Write the proportion equation
140,246,565.12 : 193,559,485.68 = 80,706,638.16 : x - Step 2: Convert to fraction form
140,246,565.12/193,559,485.68 = 80,706,638.16/x - Step 3: Cross multiply
140,246,565.12x = 193,559,485.68 × 80,706,638.16 - Step 4: Simplify right side
140,246,565.12x = 15,621,535,373,211,462 - Step 5: Solve for x
x = 15,621,535,373,211,462/140,246,565.12 - Step 6: Final answer
x = 111,386,224.40
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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.