Finding the Fourth Proportional to 19,856,041.92, 29,784,140.64 and 13,122,959.04
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Solution
The fourth proportional to 19,856,041.92, 29,784,140.64 and 13,122,959.04 is: 19,684,489.95
Step by Step Solution
- Step 1: Write the proportion equation
19,856,041.92 : 29,784,140.64 = 13,122,959.04 : x - Step 2: Convert to fraction form
19,856,041.92/29,784,140.64 = 13,122,959.04/x - Step 3: Cross multiply
19,856,041.92x = 29,784,140.64 × 13,122,959.04 - Step 4: Simplify right side
19,856,041.92x = 390,856,057,660,319.38 - Step 5: Solve for x
x = 390,856,057,660,319.38/19,856,041.92 - Step 6: Final answer
x = 19,684,489.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.