Finding the Fourth Proportional to 821,595,913.60, 1,133,829,780.50 and 450,318,896.32
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Solution
The fourth proportional to 821,595,913.60, 1,133,829,780.50 and 450,318,896.32 is: 621,455,105.74
Step by Step Solution
- Step 1: Write the proportion equation
821,595,913.60 : 1,133,829,780.50 = 450,318,896.32 : x - Step 2: Convert to fraction form
821,595,913.60/1,133,829,780.50 = 450,318,896.32/x - Step 3: Cross multiply
821,595,913.60x = 1,133,829,780.50 × 450,318,896.32 - Step 4: Simplify right side
821,595,913.60x = 510,584,975,361,587,072 - Step 5: Solve for x
x = 510,584,975,361,587,072/821,595,913.60 - Step 6: Final answer
x = 621,455,105.74
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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.