Finding the Fourth Proportional to 19,872,602.60, 29,778,483.92 and 13,371,601.72
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Solution
The fourth proportional to 19,872,602.60, 29,778,483.92 and 13,371,601.72 is: 20,036,934.00
Step by Step Solution
- Step 1: Write the proportion equation
19,872,602.60 : 29,778,483.92 = 13,371,601.72 : x - Step 2: Convert to fraction form
19,872,602.60/29,778,483.92 = 13,371,601.72/x - Step 3: Cross multiply
19,872,602.60x = 29,778,483.92 × 13,371,601.72 - Step 4: Simplify right side
19,872,602.60x = 398,186,026,803,664.38 - Step 5: Solve for x
x = 398,186,026,803,664.38/19,872,602.60 - Step 6: Final answer
x = 20,036,934.00
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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.