Finding the Fourth Proportional to 128,634,154.14, 177,516,253.98 and 69,896,818.92
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Solution
The fourth proportional to 128,634,154.14, 177,516,253.98 and 69,896,818.92 is: 96,458,219.38
Step by Step Solution
- Step 1: Write the proportion equation
128,634,154.14 : 177,516,253.98 = 69,896,818.92 : x - Step 2: Convert to fraction form
128,634,154.14/177,516,253.98 = 69,896,818.92/x - Step 3: Cross multiply
128,634,154.14x = 177,516,253.98 × 69,896,818.92 - Step 4: Simplify right side
128,634,154.14x = 12,407,821,459,796,788 - Step 5: Solve for x
x = 12,407,821,459,796,788/128,634,154.14 - Step 6: Final answer
x = 96,458,219.38
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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.