Finding the Fourth Proportional to 42,053,125.50, 63,090,342.43 and 12,908,442.09
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Solution
The fourth proportional to 42,053,125.50, 63,090,342.43 and 12,908,442.09 is: 19,365,933.50
Step by Step Solution
- Step 1: Write the proportion equation
42,053,125.50 : 63,090,342.43 = 12,908,442.09 : x - Step 2: Convert to fraction form
42,053,125.50/63,090,342.43 = 12,908,442.09/x - Step 3: Cross multiply
42,053,125.50x = 63,090,342.43 × 12,908,442.09 - Step 4: Simplify right side
42,053,125.50x = 814,398,031,695,924.88 - Step 5: Solve for x
x = 814,398,031,695,924.88/42,053,125.50 - Step 6: Final answer
x = 19,365,933.50
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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.