Finding the Fourth Proportional to 291,336,984.54, 402,040,282.95 and 159,175,136.79
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Solution
The fourth proportional to 291,336,984.54, 402,040,282.95 and 159,175,136.79 is: 219,659,090.43
Step by Step Solution
- Step 1: Write the proportion equation
291,336,984.54 : 402,040,282.95 = 159,175,136.79 : x - Step 2: Convert to fraction form
291,336,984.54/402,040,282.95 = 159,175,136.79/x - Step 3: Cross multiply
291,336,984.54x = 402,040,282.95 × 159,175,136.79 - Step 4: Simplify right side
291,336,984.54x = 63,994,817,033,656,552 - Step 5: Solve for x
x = 63,994,817,033,656,552/291,336,984.54 - Step 6: Final answer
x = 219,659,090.43
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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.