Finding the Fourth Proportional to 251,963,117.12, 347,709,098.77 and 136,069,613.12
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Solution
The fourth proportional to 251,963,117.12, 347,709,098.77 and 136,069,613.12 is: 187,776,064.56
Step by Step Solution
- Step 1: Write the proportion equation
251,963,117.12 : 347,709,098.77 = 136,069,613.12 : x - Step 2: Convert to fraction form
251,963,117.12/347,709,098.77 = 136,069,613.12/x - Step 3: Cross multiply
251,963,117.12x = 347,709,098.77 × 136,069,613.12 - Step 4: Simplify right side
251,963,117.12x = 47,312,642,545,859,048 - Step 5: Solve for x
x = 47,312,642,545,859,048/251,963,117.12 - Step 6: Final answer
x = 187,776,064.56
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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.