Finding the Fourth Proportional to 513,283,534.80, 769,358,431.80 and 283,417,587.60
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Solution
The fourth proportional to 513,283,534.80, 769,358,431.80 and 283,417,587.60 is: 424,813,374.98
Step by Step Solution
- Step 1: Write the proportion equation
513,283,534.80 : 769,358,431.80 = 283,417,587.60 : x - Step 2: Convert to fraction form
513,283,534.80/769,358,431.80 = 283,417,587.60/x - Step 3: Cross multiply
513,283,534.80x = 769,358,431.80 × 283,417,587.60 - Step 4: Simplify right side
513,283,534.80x = 218,049,710,740,475,136 - Step 5: Solve for x
x = 218,049,710,740,475,136/513,283,534.80 - Step 6: Final answer
x = 424,813,374.98
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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.