Finding the Fourth Proportional to 19,486,870.80, 29,232,149.40 and 5,303,446.80
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Solution
The fourth proportional to 19,486,870.80, 29,232,149.40 and 5,303,446.80 is: 7,955,671.84
Step by Step Solution
- Step 1: Write the proportion equation
19,486,870.80 : 29,232,149.40 = 5,303,446.80 : x - Step 2: Convert to fraction form
19,486,870.80/29,232,149.40 = 5,303,446.80/x - Step 3: Cross multiply
19,486,870.80x = 29,232,149.40 × 5,303,446.80 - Step 4: Simplify right side
19,486,870.80x = 155,031,149,192,551.91 - Step 5: Solve for x
x = 155,031,149,192,551.91/19,486,870.80 - Step 6: Final answer
x = 7,955,671.84
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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.