Finding the Fourth Proportional to 9,136,399,431.36, 12,612,362,487.12 and 5,754,279,235.28
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Solution
The fourth proportional to 9,136,399,431.36, 12,612,362,487.12 and 5,754,279,235.28 is: 7,943,507,298.77
Step by Step Solution
- Step 1: Write the proportion equation
9,136,399,431.36 : 12,612,362,487.12 = 5,754,279,235.28 : x - Step 2: Convert to fraction form
9,136,399,431.36/12,612,362,487.12 = 5,754,279,235.28/x - Step 3: Cross multiply
9,136,399,431.36x = 12,612,362,487.12 × 5,754,279,235.28 - Step 4: Simplify right side
9,136,399,431.36x = 72,575,055,567,459,033,088 - Step 5: Solve for x
x = 72,575,055,567,459,033,088/9,136,399,431.36 - Step 6: Final answer
x = 7,943,507,298.77
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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.