Finding the Fourth Proportional to 19,786,643.30, 29,679,964.95 and 14,684,809.70
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Solution
The fourth proportional to 19,786,643.30, 29,679,964.95 and 14,684,809.70 is: 22,027,214.55
Step by Step Solution
- Step 1: Write the proportion equation
19,786,643.30 : 29,679,964.95 = 14,684,809.70 : x - Step 2: Convert to fraction form
19,786,643.30/29,679,964.95 = 14,684,809.70/x - Step 3: Cross multiply
19,786,643.30x = 29,679,964.95 × 14,684,809.70 - Step 4: Simplify right side
19,786,643.30x = 435,844,637,193,420 - Step 5: Solve for x
x = 435,844,637,193,420/19,786,643.30 - Step 6: Final answer
x = 22,027,214.55
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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.