Finding the Fourth Proportional to 14,365,521.55, 19,824,841.41 and 7,839,572.21
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Solution
The fourth proportional to 14,365,521.55, 19,824,841.41 and 7,839,572.21 is: 10,818,839.76
Step by Step Solution
- Step 1: Write the proportion equation
14,365,521.55 : 19,824,841.41 = 7,839,572.21 : x - Step 2: Convert to fraction form
14,365,521.55/19,824,841.41 = 7,839,572.21/x - Step 3: Cross multiply
14,365,521.55x = 19,824,841.41 × 7,839,572.21 - Step 4: Simplify right side
14,365,521.55x = 155,418,275,686,369 - Step 5: Solve for x
x = 155,418,275,686,369/14,365,521.55 - Step 6: Final answer
x = 10,818,839.76
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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.