Finding the Fourth Proportional to 19,963,280.80, 29,955,289.20 and 9,325,712.80
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Solution
The fourth proportional to 19,963,280.80, 29,955,289.20 and 9,325,712.80 is: 13,993,412.54
Step by Step Solution
- Step 1: Write the proportion equation
19,963,280.80 : 29,955,289.20 = 9,325,712.80 : x - Step 2: Convert to fraction form
19,963,280.80/29,955,289.20 = 9,325,712.80/x - Step 3: Cross multiply
19,963,280.80x = 29,955,289.20 × 9,325,712.80 - Step 4: Simplify right side
19,963,280.80x = 279,354,423,920,141.78 - Step 5: Solve for x
x = 279,354,423,920,141.78/19,963,280.80 - Step 6: Final answer
x = 13,993,412.54
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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.