Finding the Fourth Proportional to 26,078,835.30, 39,143,997.99 and 19,579,304.58
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Solution
The fourth proportional to 26,078,835.30, 39,143,997.99 and 19,579,304.58 is: 29,388,285.57
Step by Step Solution
- Step 1: Write the proportion equation
26,078,835.30 : 39,143,997.99 = 19,579,304.58 : x - Step 2: Convert to fraction form
26,078,835.30/39,143,997.99 = 19,579,304.58/x - Step 3: Cross multiply
26,078,835.30x = 39,143,997.99 × 19,579,304.58 - Step 4: Simplify right side
26,078,835.30x = 766,412,259,125,117.75 - Step 5: Solve for x
x = 766,412,259,125,117.75/26,078,835.30 - Step 6: Final answer
x = 29,388,285.57
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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.