Finding the Fourth Proportional to 629,745,580.18, 869,363,529.60 and 391,667,503.96
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Solution
The fourth proportional to 629,745,580.18, 869,363,529.60 and 391,667,503.96 is: 540,696,837.56
Step by Step Solution
- Step 1: Write the proportion equation
629,745,580.18 : 869,363,529.60 = 391,667,503.96 : x - Step 2: Convert to fraction form
629,745,580.18/869,363,529.60 = 391,667,503.96/x - Step 3: Cross multiply
629,745,580.18x = 869,363,529.60 × 391,667,503.96 - Step 4: Simplify right side
629,745,580.18x = 340,501,443,672,287,552 - Step 5: Solve for x
x = 340,501,443,672,287,552/629,745,580.18 - Step 6: Final answer
x = 540,696,837.56
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.