Finding the Fourth Proportional to 553,017,796.18, 763,187,743.65 and 318,068,522.26
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Solution
The fourth proportional to 553,017,796.18, 763,187,743.65 and 318,068,522.26 is: 438,947,895.54
Step by Step Solution
- Step 1: Write the proportion equation
553,017,796.18 : 763,187,743.65 = 318,068,522.26 : x - Step 2: Convert to fraction form
553,017,796.18/763,187,743.65 = 318,068,522.26/x - Step 3: Cross multiply
553,017,796.18x = 763,187,743.65 × 318,068,522.26 - Step 4: Simplify right side
553,017,796.18x = 242,745,997,829,699,168 - Step 5: Solve for x
x = 242,745,997,829,699,168/553,017,796.18 - Step 6: Final answer
x = 438,947,895.54
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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.