Finding the Fourth Proportional to 497,633,110.13, 686,733,987.42 and 277,616,536.13
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Solution
The fourth proportional to 497,633,110.13, 686,733,987.42 and 277,616,536.13 is: 383,110,984.67
Step by Step Solution
- Step 1: Write the proportion equation
497,633,110.13 : 686,733,987.42 = 277,616,536.13 : x - Step 2: Convert to fraction form
497,633,110.13/686,733,987.42 = 277,616,536.13/x - Step 3: Cross multiply
497,633,110.13x = 686,733,987.42 × 277,616,536.13 - Step 4: Simplify right side
497,633,110.13x = 190,648,710,826,849,728 - Step 5: Solve for x
x = 190,648,710,826,849,728/497,633,110.13 - Step 6: Final answer
x = 383,110,984.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.