Finding the Fourth Proportional to 14,405,646,534.75, 19,879,792,217.96 and 7,812,593,862.75
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Solution
The fourth proportional to 14,405,646,534.75, 19,879,792,217.96 and 7,812,593,862.75 is: 10,781,379,530.60
Step by Step Solution
- Step 1: Write the proportion equation
14,405,646,534.75 : 19,879,792,217.96 = 7,812,593,862.75 : x - Step 2: Convert to fraction form
14,405,646,534.75/19,879,792,217.96 = 7,812,593,862.75/x - Step 3: Cross multiply
14,405,646,534.75x = 19,879,792,217.96 × 7,812,593,862.75 - Step 4: Simplify right side
14,405,646,534.75x = 155,312,742,674,740,445,184 - Step 5: Solve for x
x = 155,312,742,674,740,445,184/14,405,646,534.75 - Step 6: Final answer
x = 10,781,379,530.60
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1.5x scale
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.