Finding the Fourth Proportional to 19,871,643.64, 29,795,258.49 and 7,726,950.76
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Solution
The fourth proportional to 19,871,643.64, 29,795,258.49 and 7,726,950.76 is: 11,585,679.54
Step by Step Solution
- Step 1: Write the proportion equation
19,871,643.64 : 29,795,258.49 = 7,726,950.76 : x - Step 2: Convert to fraction form
19,871,643.64/29,795,258.49 = 7,726,950.76/x - Step 3: Cross multiply
19,871,643.64x = 29,795,258.49 × 7,726,950.76 - Step 4: Simplify right side
19,871,643.64x = 230,226,495,233,701.94 - Step 5: Solve for x
x = 230,226,495,233,701.94/19,871,643.64 - Step 6: Final answer
x = 11,585,679.54
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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.