Finding the Fourth Proportional to 87,732,459.68, 121,072,641.52 and 48,041,657.36
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Solution
The fourth proportional to 87,732,459.68, 121,072,641.52 and 48,041,657.36 is: 66,298,498.65
Step by Step Solution
- Step 1: Write the proportion equation
87,732,459.68 : 121,072,641.52 = 48,041,657.36 : x - Step 2: Convert to fraction form
87,732,459.68/121,072,641.52 = 48,041,657.36/x - Step 3: Cross multiply
87,732,459.68x = 121,072,641.52 × 48,041,657.36 - Step 4: Simplify right side
87,732,459.68x = 5,816,530,359,573,949 - Step 5: Solve for x
x = 5,816,530,359,573,949/87,732,459.68 - Step 6: Final answer
x = 66,298,498.65
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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.