Finding the Fourth Proportional to 19,554,139.80, 29,331,209.70 and 14,515,291.80
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Solution
The fourth proportional to 19,554,139.80, 29,331,209.70 and 14,515,291.80 is: 21,772,937.70
Step by Step Solution
- Step 1: Write the proportion equation
19,554,139.80 : 29,331,209.70 = 14,515,291.80 : x - Step 2: Convert to fraction form
19,554,139.80/29,331,209.70 = 14,515,291.80/x - Step 3: Cross multiply
19,554,139.80x = 29,331,209.70 × 14,515,291.80 - Step 4: Simplify right side
19,554,139.80x = 425,751,067,642,490.50 - Step 5: Solve for x
x = 425,751,067,642,490.50/19,554,139.80 - Step 6: Final answer
x = 21,772,937.70
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1.5x scale
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.