Finding the Fourth Proportional to 21,484,341.84, 29,648,769.75 and 11,695,067.40
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Solution
The fourth proportional to 21,484,341.84, 29,648,769.75 and 11,695,067.40 is: 16,139,398.78
Step by Step Solution
- Step 1: Write the proportion equation
21,484,341.84 : 29,648,769.75 = 11,695,067.40 : x - Step 2: Convert to fraction form
21,484,341.84/29,648,769.75 = 11,695,067.40/x - Step 3: Cross multiply
21,484,341.84x = 29,648,769.75 × 11,695,067.40 - Step 4: Simplify right side
21,484,341.84x = 346,744,360,553,331.19 - Step 5: Solve for x
x = 346,744,360,553,331.19/21,484,341.84 - Step 6: Final answer
x = 16,139,398.78
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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.