Finding the Fourth Proportional to 381,313,898.52, 526,197,683.88 and 216,297,925.08
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Solution
The fourth proportional to 381,313,898.52, 526,197,683.88 and 216,297,925.08 is: 298,482,346.56
Step by Step Solution
- Step 1: Write the proportion equation
381,313,898.52 : 526,197,683.88 = 216,297,925.08 : x - Step 2: Convert to fraction form
381,313,898.52/526,197,683.88 = 216,297,925.08/x - Step 3: Cross multiply
381,313,898.52x = 526,197,683.88 × 216,297,925.08 - Step 4: Simplify right side
381,313,898.52x = 113,815,467,205,145,776 - Step 5: Solve for x
x = 113,815,467,205,145,776/381,313,898.52 - Step 6: Final answer
x = 298,482,346.56
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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.