Finding the Fourth Proportional to 19,175,781.70, 26,462,421.49 and 10,473,959.80
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Solution
The fourth proportional to 19,175,781.70, 26,462,421.49 and 10,473,959.80 is: 14,453,978.63
Step by Step Solution
- Step 1: Write the proportion equation
19,175,781.70 : 26,462,421.49 = 10,473,959.80 : x - Step 2: Convert to fraction form
19,175,781.70/26,462,421.49 = 10,473,959.80/x - Step 3: Cross multiply
19,175,781.70x = 26,462,421.49 × 10,473,959.80 - Step 4: Simplify right side
19,175,781.70x = 277,166,338,896,916.09 - Step 5: Solve for x
x = 277,166,338,896,916.09/19,175,781.70 - Step 6: Final answer
x = 14,453,978.63
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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.