Finding the Fourth Proportional to 84,607,054.70, 126,910,582.05 and 20,781,646.70
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Solution
The fourth proportional to 84,607,054.70, 126,910,582.05 and 20,781,646.70 is: 31,172,470.05
Step by Step Solution
- Step 1: Write the proportion equation
84,607,054.70 : 126,910,582.05 = 20,781,646.70 : x - Step 2: Convert to fraction form
84,607,054.70/126,910,582.05 = 20,781,646.70/x - Step 3: Cross multiply
84,607,054.70x = 126,910,582.05 × 20,781,646.70 - Step 4: Simplify right side
84,607,054.70x = 2,637,410,878,654,461.50 - Step 5: Solve for x
x = 2,637,410,878,654,461.50/84,607,054.70 - Step 6: Final answer
x = 31,172,470.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.