Finding the Fourth Proportional to 28,679,129.80, 39,577,204.82 and 15,626,388.71
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Solution
The fourth proportional to 28,679,129.80, 39,577,204.82 and 15,626,388.71 is: 21,564,419.52
Step by Step Solution
- Step 1: Write the proportion equation
28,679,129.80 : 39,577,204.82 = 15,626,388.71 : x - Step 2: Convert to fraction form
28,679,129.80/39,577,204.82 = 15,626,388.71/x - Step 3: Cross multiply
28,679,129.80x = 39,577,204.82 × 15,626,388.71 - Step 4: Simplify right side
28,679,129.80x = 618,448,786,572,605.62 - Step 5: Solve for x
x = 618,448,786,572,605.62/28,679,129.80 - Step 6: Final answer
x = 21,564,419.52
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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.