Finding the Fourth Proportional to 19,938,743.40, 29,908,115.10 and 6,476,932.20
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Solution
The fourth proportional to 19,938,743.40, 29,908,115.10 and 6,476,932.20 is: 9,715,398.30
Step by Step Solution
- Step 1: Write the proportion equation
19,938,743.40 : 29,908,115.10 = 6,476,932.20 : x - Step 2: Convert to fraction form
19,938,743.40/29,908,115.10 = 6,476,932.20/x - Step 3: Cross multiply
19,938,743.40x = 29,908,115.10 × 6,476,932.20 - Step 4: Simplify right side
19,938,743.40x = 193,712,833,732,496.25 - Step 5: Solve for x
x = 193,712,833,732,496.25/19,938,743.40 - Step 6: Final answer
x = 9,715,398.30
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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.