Finding the Fourth Proportional to 77,546,277.84, 107,012,475.08 and 42,264,400.72
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Solution
The fourth proportional to 77,546,277.84, 107,012,475.08 and 42,264,400.72 is: 58,324,116.32
Step by Step Solution
- Step 1: Write the proportion equation
77,546,277.84 : 107,012,475.08 = 42,264,400.72 : x - Step 2: Convert to fraction form
77,546,277.84/107,012,475.08 = 42,264,400.72/x - Step 3: Cross multiply
77,546,277.84x = 107,012,475.08 × 42,264,400.72 - Step 4: Simplify right side
77,546,277.84x = 4,522,818,128,820,134 - Step 5: Solve for x
x = 4,522,818,128,820,134/77,546,277.84 - Step 6: Final answer
x = 58,324,116.32
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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.